we're back here captioning sponsored by cbs >> ninan: also, another insider attack on american soldiers in afghanistan. the search for missing u.s. sailors after a navy destroyer collides with a cargo ship. and triple-digit heat in the west at the start of wildfire season. this is the "cbs weekend news." >> ninan: good evening. i'm reena ninan. a mistrial was declared today in

the sexual assault case against bill cosby. the jury was deadlocked. the comedian's lawyers are declaring victory. the prosecution is promising a do-over. jericka duncan is at the courthouse in norris town, pennsylvania. >> reporter: in a steady rain, with his head held high, bill cosby listened on as his defense team declared victory. publicist andrew wyatt: >> mr. cosby's power is back. it's back. it has been restored. the jurors, they used their power to speak. >> reporter: defense attorney brian mcmongal. >> i'm proud to have represented mr. cosby. we came looking for an acquittal buttals the rolling stone song you don't always gets what you want. sometimes you get what you need. >> reporter: the jury deliberated 52 hours over six days but this morning they told the judge they could not reach an agreement. cosby's wife, camille, who only

appeared once throughout the more-than two-week trial had a spokeswoman read a statement where she referred to the judge as overtly arrogant. regarding the jurors, she said, "i am grateful to any of the jurors who tenaciously fought to review the evidence, which is the rightful way to make a sound decision." during the trial, cosby's defense team told jurors that cosby had "danced outside his marriage," but he didn't commit a crime. the defense focuse focused on inconsistent statements cosby's accuser, andrea constand, gave to police about when the alleged assault happened and the nature of her relationship with cosby, who was 37 years her senior. montgomery county district attorney kevin steele, who will seek a retrial, says constand has shown tremendous courage. >> she's entitled to a verdict in this case, and we will push forward to try to get that done and get justice done. >> reporter: cosby has been

accused by nearly 60 women of sexual assault over the past several decades. the 79-year-old has denied those allegations. andreandrea constand's case wase only one that was still eligible to go to trial. constand testified that in 2004, cosby drugged and molested her after giving her three blue pills, which she says left her paralyzed and unable to move. cosby says it was consensual. reena, the judge says he plans to set a trial date within the next four months. >> ninan: jericka duncan in norris town, pennsylvania, thank you, jericka. there was another insider attack on u.s. soldiers in pfg. it happened at a military base in northern afghanistan. seven soldiers were wounded when an afghan soldier, thought to be an ally, turned his gun on them. americans returned fire and killed the gunman. the attack comes a week after three u.s. soldiers were killed in a similar assault by an afghan army infiltrator.

the taliban claimed responsibility. the trump administration is now considering sending thousands of additional troops to afghanistan to help in the fight against the taliban, al qaeda, and isis. since 2001, more than 2200 americans have been killed in afghanistan fighting america's longest war. seven american sailors are still missing tonight after their u.s. navy destroyer collided with a cargo ship off the coast of japan. it happened saturday morning local time in a busy waterway about 60 miles off yokosuku, japan. ben tracy is following the search in beijing. >> reporter: the al-udei uss "fitzgerald" had to be toad back to its home port. it is still unclear how the "fitzgerald" collided with a container ship that was nearly four times its size. the merchant vessel, based in the philippines, suffered far lesdamage. three members of the u.s. navy were injured and had to be medically evacuated, including

the commanding officer, bryce benson. all three are said to be conscious and in stable condition. vice admiral joseph aaucoin heads the u.s. fleet. >> it's extremely proud of their courage and dedication. >> reporter: the navy has begun to search the damaged sections of the ship tow see if any of the missing crew memberes were trapped inside or if they were thrown overboard during the collision. this particular area near tokyo bay is an extremely busy shipping lane, but accidents like this involving a military vessel are still rare. japanese authorities will now analyze both ships' navigation records for clues as to what caused the collision. the commander of the u.s. seven fleet was at the pier in japan with family members of the crew when the "fitzgerald" arrived. he said it was a difficult day but that he was humbled by their bravery in getting the ship back to port. reena. >> ninan: ben, thank you. for the first time since taking

office, president trump is visiting the presidential repreet camp dave in the mountains of maryland. it's a more you rustic setting than mr. trump's golf course in new york. >> mr. president, do you have confidence in your deputy attorney general? >> reporter: president trump did not answer questions as he, the first lady, and son barron left the white house for camp david today. president trump's first trip to the secliewlded presidential retreat comes after he voiced frustration over the russia investigation. on friday, the president seemed to confirm a report he is the subject of an obstruction of justice probe tweeting, "i am being investigated for firing the f.b.i. director by the man who told me to fire the f.b.i. director! witch hunt." that was apparently a reference to deputy attorney general rod rosenstein, who recommended trump dismiss then-f.b.i. director jim comey. rosenstein also appointed former f.b.i. director robert mueller

to oversee the investigation. >> in any type of case, rosenstein would be a likely witness. >> reporter: constitutional law professor jonathan turley believes rosenstein should recuse himself from overseeing the investigation. >> i can't imagine the special counsel completing this investigation without hearing the testimony of the deputy attorney general. so once you think that you may be a witness, it's time for you to remove yourself. >> reporter: turley also says the president should be more careful with his words, even on twitter. >> any statement the president makes in any form can be evidence that can be used in an obstruction prosecution. >> reporter: now, general counsel for the trump transition team sent a memo to transition team members ordering them to preserve any and all documents related to the russia investigation. and we've learned vice president mike pence, who was in charge of the transition, has hired his own personal lawyer. he described it to reporters as

very routine. reena. >> ninan: errol barnett covering the president. london police now say at least 58 people are presumed dead following a horrific fire wednesday that destroyed a high-rise apartment building. jonathan vigliotti says people who live there are now demanding answers. >> we want justice! >> reporter: anger boiled over on friday as people stormed kensington and chelsea town hall. >> we want justice! >> reporter: soon afterwards, prime minister theresa may was chased away from a local church. on saturday, she met with a group of residents in the more-controlled setting of 10 downing street. officials have yet to answer several key questions: what caused the fire? could it have been prevented? and why aren't people getting the aid they desperately need now? many survivors are sleeping on the floor in community centers, and there's still no coordinated distribution of donated food and clothing. residents who survived said they warned the building's manager

about fire hazards for years but were ignored. how many timeses have you complained about the safety of the building? >> many times. >> reporter: miguel alvez complained about construction tools blocking the exhibits. the neighborhood's resident association said the management company was negligent. >> people have raised these concerns. people were expressing issues regarding the safety and dangerous living conditions. unfortunately, they were not listened. >> reporter: residents are now dealing with the tragic consequences. omar was rescued by firefighters from his 14's floor apartment, but his brother, who he thought was right behind him, didn't make it out. >> i said, "where are you?" he said, "i'm in the flat?" i said, "why you didn't come? they brought us outside. i thought you were with us." he said, "no one brought me outside." he said, "why you left me?" he said, "why--." >> reporter: building officials have not commented since the fire.

the recovery effort resumed this afternoon but the police warn it could take weeks for answers to emerge. jonathan vigliotti, cbs news, london. >> ninan: summer doesn't officially start until wednesday, but for parts of the west and southwest, they're already broilg in trim-digit heat waves. 195 degrees in furnace creek, california, 113 in blue water, california, and 112 in midland, texas. it's making conditions even more dangerous for crews battling wildfires. here's danielle nottingham. >> reporter: reena, temperatures in parts of california are expected to rise as high as 25 degrees above normal. sizzling heat across the region could break records, and another cause for concern-- air quality. unhealthy to very unhealthy local officiales of heat-induced ozone pollution are expected in several inland communities. excessive heat warnings extent to nevada, parts of utah, and arizona, where over a dozen

wildfires are burning around the state. six firefighters had to be treated for heat-related illness, while battling the high line fire. temperatures in phoenix are expected to reach 120 degrees. and the hottest temperatures will arrive in the southwest on monday and last through the end of next week. and in the southern california desert, highs in death valley could soar to 127 degrees. reena. >> ninan: danielle nottingham, thank you, danielle. next, shark sightings in california are taking a big bite out of beach business. abdominal pain... ...and diarrhea. but it's my anniversary. aw. sorry. we've got other plans. your recurring, unpredictable abdominal pain and diarrhea...

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ask about xeljanz xr. ykeep you sidelined.ng that's why you drink ensure. with 9 grams of protein and 26 vitamins and minerals. for the strength and energy to get back to doing... ...what you love. ensure. always be you. beach-goers a scare friday in gulf shores, alabama. people got out of water and stayed out until it swam away. in california, there have been more than 127 confirmed shark sightings in a recent week. that's a big bite out of business in southern california beach communities.

jamie yuccas reports from san clemente. >> reporter: surf's up, but business is down. blame it on the shark effect with dozens of great whites being spotted along the coast. within the last year alone, two shark attacks took place within a 25-mile stretch of southern california beaches. in april, a 36-year-old mom lost part of her right leg. she remains hospitalized. lalife guards now start day scanning the water for sharks. >> it looks like the area is shark free. >> reporter: no one knows why the great whites moved in and stayed but it scared people away. a typical summer day would bring up to 10,000 beach-goers. on this day, it was nearly empty. surf camp owner john pierce has his lowest attendance in 16 years. >> normally, we would have, like, 20-plus kids in a class and i would run two classes a day. we'd be full all summer with wait lists. >> reporter: his business is down by more than 50%. some surf camps are cancelling classes entirely. one area surfing contest for

kids was canceled for the first time in 21 years. suffer moms like candace lazar, just don't want to risk it. >> you have to live your life. it's hard, it's hard to kind of figure out how to react. you don't want to over-react. >> reporter: there is that chance. >> yes, there is. >> reporter: and that does weigh on your mind. >> yeah. >> reporter: like what if i put my kid in surf camp and something happens, you would never forgive yourself. >> you would never forgive yourself. and i think that's why i took the step when i did. there were just so many reports one right after the other and it was just getting out of hand. it was crazy. >> reporter: 11-year-old ava mcgovern did convince mom to train as a junior lifeguard in a group. what she is not convinced of, hanging in the ocean alone. >> i was a little scared of the sharks. >> reporter: do you usually surf? >> i did surf but now i'm not quite sure if i am going to surf for, like, a long time now, because of the sharks. >> reporter: jamie yuccas, cbs news, san clemente, california. >> ninan: still ahead, your chance to help "48 hours" solve

a cold case, the murder of a 21-year-old woman in a home invasion. ♪ well he came home from college just the other day ♪ ♪ he said i can't thank you enough for paying my way ♪ ♪ what i'd really like dad is to borrow the car keys, ♪ ♪ take you to dinner and discuss my dreams ♪ ♪ and the cat's in the cradle and the silver spoon ♪ ♪ little boy blue and the man in the moon ♪ ♪ when you comin' home, dad? i'll be home in ten ♪ ♪ and we'll get together then. ♪ ♪ you know we'll have a good time then. ♪

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murder of amy gellert. >> the gelert case is one that's kind of haunted us for 20 years now. the biggest problem i think we have is really trying to figure out why it happened. >> reporter: on the evening of march 20, 1994, bunny and bob lehton returned from church to find a masked intruder this their cocoa beach, florida, home. >> basically, we had to crawl through here on our hands and knees, and he took us to this year right here. something switched in him. he just lost it, and he starts stabbing me in my neck, and it's going in so deep, i can feel the bones crunchy. >> reporter: miraculously, they both survived, but bunny's 21-year-old daughter, amy, who happened to come home during the attack, did not. amy's brother, ryan gellert: >> my first thought was i just couldn't believe it. it just didn't make sense. >> reporter: it's hard to think about it, isn't it.

for the family, it's all the more painful because this morhelp than-20-year-old cold case has never been solved, but this team of investigators in the brevard county sheriff's office is determined to catch the killer, or killers, who got away. >> i think it's solvable. it's going to take the right piece of evidence and the right person to be willing to talk about it. >> reporter: what investigators do know is that the intruder was armed with unusual weapons. the gun was later identified as a prop weapon used in the theater and movies. the knife was actually a dagger that looked something like this with an ornate hilt. and have you ever been able to find one that seemed to match? >> no. >> not with the hilt. >> not with the hilt like, that no. >> reporter: and investigators agree-- all the evidence points to a targeted attack. >> the consensus tends to be that amy is the catalyst. there's something there with amy that probably caused this to

happen. >> reporter: although thealateons couldn't identify their masked assailant-- >> mixed caucasian, i think i picked that up with the contrast with the ski mask and the eyes. >> both cases you may have one primary suspect, a couple of peripheral suspects but butt with this one there are many possibilities. >> reporter: bunny lehton has faith that after all these years someone will come forward with evidence and she will finally get justice for her daughter. >> i think that people are holding on to information. they don't think it's significant, but it is. it means everything to us. amy means everything to us. >> ninan: you can see erin's full report tonight on "48 hours" right here on cbs. up next, below the streets of rome, a new metro station is a museum filled with treasures. and you're talking to your rheumatologist about a medication... ...this is humira.

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stomach-area pain and swelling. talk to your doctor about managing your symptoms proactively with linzess. >> ninan: we end tonight in rome where a new subway station is also a museum filled with ancient treasures. here's seth doane. >> it was quite elaborate. >> yes. >> reporter: it's a breathtaking array of artifacts from ancient rome, including coins and jewelry. they would use these bone objects as pens. >> yes, like pens. >> reporter: and almost as

impressive as what's in the collection is where it's on display-- a metro station, which doubles as a museum. this is not your typical subway station. >> no. >> reporter: all of these found where the subway station was. >> yes. >> reporter: it's incredible. anna giulia fabiani led a team of archaeologists who unearthed these treasures during the excavation of rome's san giovanni metrostop which will open to the public this fall. how many objects did you find while excavating the station? >> more than 1,000 cases. >> reporter: 8,000 cases of objects? >> only in this station. >> reporter: only from here. >> yes. >> reporter: the extension of rome's metroline "c" has been plagued by delays and soaring costs. this station alone was around $60 million. rome is unique. it's also pretty difficult place to build a subway. you encounter an awful lot. >> it is very difficult because

everywhere in rome, you find something. it has been-- francesco prosperetti is rome's archaeological superintendent. you were the one who gave this the green light. >> yes. i decided to start an experiment, which was never tried before-- to transform a tube station into something between a museum and an ancient environment. . >> reporter: this is a trip on the metro, but it is also a journey through time. as rome developed, the city was built on top of itself layer after layer, and this wall marks that. right now, we're heading deep down toward the imperial period, around 2,000 years ago. that's where the team unearthed an elaborate irrigation system of aqueducts and pipes for pressurized water. >> why they made it so sophisticated system? because they were producing an

illusory product. >> reporter: they uncovered pots used for seed lings and preserved deep underground tree roots and petrified peach pits. prosperetti calls this glimpse of an ancient agricultural landscape extraordinary. italians have a reputation for being late. you're going to make them even later as they stop to look at all of this in the subway. >> well, i hope that the tube trains are-- will be more punctual. >> reporter: what's a few minutes, anyway, when compared to thousands of years of history? seth doane, cbs news, rome. >> ninan: and that's the cbs weekend news for this saturday. the news continues always on our 24-hour streaming cranl cbsn at cbsnews.com. i'm reena ninan in new york. thank you from all of us. good night. for years, fios has been promising

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