tonight, show of force. north korea sending a message to president trump, showing off what could be new missiles. the big question, can that artillery hit the continental u.s.? as tensions rise, our martha raddatz in the region tonight. breaking news. pro-trump and anti-trump forces clashing in the streets, this as thousands of others march across the country, including near mar-a-lago, demanding to see the president's tax returns. breaking overseas. the powerful blast killing scores of people, including children in syria. the families trying to evacuate the region as a huge car bomb exploded. also breaking tonight. an arrest in the case of the google account executive murdered while going for a run. and travelers on edge.

during the busy holiday travel weekend. what sparked this panic. good evening. thanks for joining us on this saturday. we begin tonight with the intensifying tensions with north korea and new concerns about the reach of their deadly weapons. that country's military muscle on display once again at a parade in pyongyang showing off what may be missiles, sending a message to president donald trump. the unpredictable leader taking this show of force during a celebration of the 105th birthday of his grandfather, the country's founder. this as our global affairs correspondent got rare access to a key south korean air base, shedding new light on the issues facing this rising conflict. and vice president mike pence arriving in the region later tonight. abc's martha raddatz

off tonight. >> reporter: the massive military parade comes as tensions with the u.s. are at the parade today, north korea responding to statements like these from president donald trump. >> north korea is a problem. the problem will be taken care of. >> reporter: with a new warning, north korea's second-most senior official saying donald trump is creating a war situation and north korea is prepared for "all-out war" including a "nuclear attack." so far, the underground nuclear tests that some analysts anticipated to coincide with the celebration of north korea's most important patriotic day have not happened. but tonight, all eyes on the newest weapons in the reclusive nation's arsenal. canisters large enough to hold what may be a new type of intercontinental ballistic missile and for the first time up close,

missiles. the north korean are trying to develop missiles that could reach the u.s. and already have weapons that could reach yap japan and south korea. so this is serious stuff. >> yes, ma'am. this is your third set of blast doors here. >> reporter: just a few dozen miles from the dmz, the most militarized border in the world, we had a rare visit deep inside the u.s.'s osan air base, one of the first lines of defense against north korea. here, u.s. fighter jets take off to patrol the skies above and we saw up close patriot batteries, a missile defense system guarding against an attack from north korea. >> basically what a patriot does is it determines an inbound threat missile, we fire a patriot missile at it and it's a bullet on bullet scenario where the patriot missile hits the threat missile and destroys it. >> reporter: one of the generals in charge of all u.s. forces in korea tells me the situation is

that is our best deterrent. but we take this -- his threats and his developments very seriously. >> reporter: and tom, even though the north koreans have yet to conduct that sixth underground nuclear test, the general told me it could happen any time. tom. >> martha raddatz monitoring those developments tonight. thank you. for more on north korea's moves, let's bring in retired colonel steve ganyard for more on that north korean arsenal. you reviewed that video. what did you see in that parade that you found troubling? >> several things, tom. the first is those big canisters. it clearly signals north korea's intent to build bigger, longer range missiles that eventually could hit the continental united states. also the diversity of missiles. we saw not only land-based but submarine-launched missiles. those missiles on trucks, it means they're road mobile, they can hide in forests, pop up and shoot before the u.s

chance to react. >> steve, adding to today's celebration and the tension with the u.s., some experts thought north korea's leader, kim jong un, would have tested a nuclear weapon today. >> well, tom, he certainly has a flare for the dramatic, and so perhaps he's saving something for another day. perhaps for a special greeting for vice president pence who comes to seoul tomorrow. >> and that timing of course could be even more dangerous. all right. steve, thanks so much. and much more from south korea tomorrow on a special edition of "this week" martha raddatz anchoring from seoul with an exclusive interview with president trump's top national security adviser h.r. mcmaster. to the violent clashes popping up on a day of demonstrations at home. major brawls in berkeley, california. hundreds of pro and anti-trump protesters lashing out, police in riot gear making at least 15 arrests and there were about 150 tax day protests demanding to see the president's tax returns. even at the president's mar-a-lago resort.

from west palm beach tonight. >> reporter: in berkeley, california, today, a melee, violence flared between pro and anti-trump demonstrators. a clash complete with fire crackers and pepper spray. police in riot gear standing by. at least 15 demonstrators are now under arrest. this on a day of nationwide protests scheduled for tax day, april 15th. in new york, l.a., washington, and chicago. dozens of cities, protesters demanded president trump release his tax returns. >> so, what does your sign say? >> well you can read it. it says 75% of americans say, "release your taxes." and that's what we want donald trump to do. >> reporter: today they were even marching on mar-a-lago. >> he's scamming the united states. he's costing millions of dollars by coming to mar-a-lago every weekend to play golf. >> reporter: at that first debate with hillary clinton, trump promised he'd eventually releas

>> i'm under a routine audit, and it'll be released. and as soon as the audit's finished, it will be released. >> reporter: later, a change of heart. >> he's not going to release his tax returns. we litigated this all through the election. people didn't care. they voted for him. >> we do care. we are here. we demand to see his taxes. >> reporter: plenty of trump supporters disagree. >> i think he's doing pretty good. have to give him a chance. he's a rookie, and has to get used to the politics of the game. once he gets used to it, i think he'll be alright. >> and david wright joins us live from west palm beach tonight. did the president actually see and hear those protesters at mar-a-lago today? >> reporter: he didn't see them, but he was certainly aware of them, tom. hundreds of demonstrators right along the route that he normally takes back from his golf course. well, today, the motorcade took the long way around, a ten-minute detour. >> david wright

west palm beach tonight. next the breaking news out of war-torn northern syria. syrian television reporting scores of people were killed when a bomb rocked an area where people were trying to escape. children among the dead. abc's jennifer eccleston reports. >> reporter: the massive suicide car bomb engulfing the scene in flames. rescue teams say at least 100 dead just outside of aleppo. [ crying ] innocent children, bloodied by the blast, among the casualties. buses charred, car mangled. the target, thousands of evacwees from rebel-besieged towns heading to government areas. the goal, to move trapped residents to safer, friendlier zones. the staging area for that transfer, the site of tonight's carnage. delays leaving thousands dangerously exposed. no one has claimed responsibility, but each side in -- is blaming the

attacks and doubts about whether these rare moments of compromise between syria's warring sides can continue. tom? >> such a devastating scene. jennifer, thank you. we're learning more tonight about the number of isis militants killed in that massive bomb blast in afghanistan last week. that so-called mother of all bombs, the largest non-nuclear weapon ever used by the u.s. military in combat. afghan officials now saying the toll has risen to at least 94 isis fighters killed in that attack. now the developing headline from police in massachusetts. there may be a break in the case of a young google account executive who disappeared last summer while visiting her mother. she went out for a jog and was later found murdered. abc's eva pilgrim picks up the story. >> we got him. [ applause ] >> reporter: relief tonight. the murder of a young woman out for a run, finally solved. authorities say 31-year-old angelo colon ortiz attacked vanessa marcotte. the 27-year-old google employee

home visiting her family in princeton, massachusetts. she went out for a run in broad daylight on august 7th. when she didn't return, her family called police. marcotte's body was found in the woods, off a two-lane road, half a mile from her mother's home. >> it was through her determined fight and her efforts that we obtained the dna of her killer. >> reporter: investigators say ortiz's dna was found under marcotte's fingernails. after the murder, more than 1300 tips poured in, many describing a dark colored suv and its driver. an alert state trooper spotted that suv. >> he looked at the driver of the vehicle. and it matched our suspect. >> reporter: ortiz gave a voluntary dna sample. it was a match. >> she was a loving, caring and intelligent young woman who had her whole life ahead of her. >> reporter: ortiz isn't charged with murder yet, although authorities expect those charges to come soon. tom? >> eva, t

outrage. two georgia police officers fired after video surfaced on social media showing them punching and kicking a man in the head who was handcuffed on the ground. tonight, one attorney claiming that video may be misleading. >> reporter: tonight, hits and kicked in the face by police, the man assaulted on video now calling for those officers to be charged as criminals. >> punched, tased, kicked in the head, and incarcerated for no reason. i am a law-abiding citizen whose rights were repeatedly violated. >> reporter: demetrius hollins was pulled over outside of atlanta. the situation escalating quickly. watch as one witness captures video of sergeant michael bongiavonni hitting hollins, already on the ground and handcuffed, another person records officer robert mcdonald stomp on the 21-year-old's face. >> make no mistake. what they did was a crime.

lawyer sayings this video is misleading. rather than a punch it shows a shoulder strike and is in line with police protocol to get holens to comply with a search for weapons. both officers were fired within 24 hours. the district attorney now deciding if they will face charges. >> there's literally no excuse for behavior like this. >> reporter: bongiavonni's attorney telling us he believes the sergeant acted in line with his training and that he stands by his 19 years of service. we were not able to reach officer mcdonald for comment. tom? >> adruenne, thank you. now to the panicked moments for last-minute holiday travelers, a stampede at new york's penn station after police had a scuffle with the suspect involving a taser. highlighting how many of us are now on edge these days, especially when trying to get from point a to point b. >> reporter: mass panic. new york city's penn station, the scene of chaos, packed with thousands of easter weekend commuters. travelers tripping over each

reports of an active shooter. [ screaming ] look as people laid out on the floor covering their loved ones. others ran, leaving their luggage and shoes behind. >> i just like took them and ran to the back of the store, and we jumped over the counter. >> be advised no shots fired. a taser went off. >> reporter: a taser, not gunshots caused the hysteria, amtrak police using it on a man in the crowded terminal. the panic creating a ripple effect, reaching macy's a block away. the store evacuated. [ crying ] >> not bad now but when the tasing happened, penn station more packed than usual. a broken-down train had caused major delays. the reaction at one of the busiest mass transit hubs in the world, a sign of the times. how would you react in that situation? >> i would stay calm. no need to panic and add more to the confusion. >> reporter: tom, this penn station stampede injured more than a dozen people and creat

tom? >> a wild scene there at penn station. kenneth, thank you. now to the severe weather threat from the texas panhandle all the way to southern wisconsin. take a look at this, a tornado culturing down there in texas and these scorching brush fires fueled by dry conditions in tampa, florida. our senior meteorologist joins us with the latest on all of that and the easter sunday warm-up in the northeast. hey, rob. >> hey, tom. the dry season continues across florida and it's feeling like summer across much of the south. let's hit the severe weather threat tonight, it extends from minnesota all the way back through oklahoma damaging winds, maybe an isolated tornado like we saw last night but they won't get going until later on tonight and get to chicago around 7:00 a.m. and into springfield, missouri. ahead of this front, we've got big time, look at these numbers, 85 in d.c., 83 in new york, 82 potentially in boston tomorrow. way above average, some rain across that front and through ohio and tennessee and late rain as we wrap up

tom? >> we look forward to those temperatures here at home. rob, thanks so much. there's still much more ahead. we're following reports of a shark attack. the shark was 12 feet long. the tourist now in critical condition. plus, one of the nfl's biggest stars accused in a sports memorabilia fraud case. why his own words could be the smoking gun. and the world has been waiting for april the giraffe to give birth. well, that wait is over. an exclusive close-up peek at mother and calf later. ♪ predictable. the comfort in knowing where things are headed. because as we live longer... and markets continue to rise and fall... predictable is one thing you need in retirement to help protect what you've earned and ensure it lasts. introducing brighthouse financial. a new company established by metlife

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>> the plaintiffs are basically alleging that eli manning and the giants were complicit in manufacturing counterfeit game-used memorabilia. >> reporter: a new jersey sports souvenir dealer accuses them of passing off giants helmets and jerseys as "gamed used," which makes them coveted by collectors, when they weren't. the lawsuit cites this 2010 e-mail exchange between manning and the team's equipment manager. "let me know what you're looking for i'll try to get something down for you." manning reply, "two helmets that can pass as game used. that is it. eli." in a statement, the giants said the e-mail was taken out of context. nning's character. defame sports memorabilia is a mega million dollar industry. last year, an arkansas collector convicted of trying to sell a counterfeit 1978 heisman trophy and in ohio, cliff panezich is serving six years in prison

selling fake autographs to nearly 20,000 people. if you do decide to buy a sports souvenir look for an authentication and seal of a representable third party athent cater and get a warranty that promises to refund your money if what you purchased and thought was genuine turns out to be phony. >> thanks so much. an incredible rescue caught on camera. take a look at this. sudden raging waters trapping a fisherman. why it took more than an hour to save him. and we're heading down to the big easy to show you the new way to enjoy champagne. stay with us. ♪ ♪ that's life. you diet. you exercise. and if you still need help lowering your blood sugar... ...this is jardiance. along with diet and exercise... jardiance lowers blood sugar and a1c in adults with type 2 diabetes.

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a tourist in critical condition. the french 28-year-old was surfing when the shark latched on to his leg. other surfers taking him out of the water and tying a tourniquet around his leg. witnesses say it was a 12-foot tiger shark that attacked him. now to the dramatic rescue of a fisherman stuck in the middle of raging waters. take a look at this video. the man was fishing off the rocks there in oklahoma when this spillway from a nearby dam opened, flooding the area with water. it was a tricky rescue taking more than an hour to get him into the boat. luckily, he was not injured. finally, from the town that brought you the sazerac, the hurricane and the hand grenade comes yet another drinking innovation. the bar at arnaud's with what is being build as the world's first champagne vending machine. it costs 20 bucks and it comes with a spout so you can drink it right out of the bottle and in new orleans, you can drink it out on the street, no problem. all right. up next, the birth watched around the world. after week of anticipation, april the giraffe has a new baby.

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finally tonight, the most public of entrances, more than a million people watching as april the giraffe gives birth. the calf an instant celebrity. here's abc's gloria riviera. >> reporter: it's a boy! tonight an exclusive first peek. only abc's cameras allowed inside to see up close, the baby giraffe the world has been waiting to meet. his mama, april, an internet sensation. the bbc proclaiming it to be the most anticipated birth since prince george. and so, joy this morning when this little guy arrived. >> there you have it, guys. we have a baby. >> reporter: this nearly

taking his first wobbly steps. a few falls and nuzzling with mom. home is the animal adventure park in upstate new york where they hope all this attention will boost conservation efforts. >> to see the lives that we're changing and the impact that we're making not just in personal lives but also in giraffe education and the need for conservation, that's the home run. >> reporter: tonight, it's likely snuggles, milk, and a nap for the baby who brought smiles to so many around the world. gloria riviera, abc news, washington. and in case you're wondering, the name for that little boy still tbd but when we find out, we'll let you know. thanks so much for watching. "gma" and "this week" in the morning and i'll see you right back here tomorrow night. have a great evening. good night. and i'll see you right back here tomorrow night. have a great evening. good night.