5:00. thank for your time. see you again at 6:00. tonight, breaking news. the killing seen live on facebook. the massive manhunt under way. the suspect considered armed and dangerous. police say he livestreamed the homicide and claims he's killed more. failure to launch. north korea's new missile exploding moments after blastoff. did u.s. hackers disrupt the launch? and is kim jong-un's next move a nuclear test? martha raddatz in seoul tonight. trump's tax battle. protests across the country. some turning violent as thousands demand the president release his tax returns. the president calling them paid protesters. shark spotter. the new lifeguards. beaches launching drones, taking to the air to protect swimmers. and, easter surprise.

the military family honored on the football field, but the big reaction when the mystery player takes off his helmet. good evening. thanks for joining us on this sunday. i'm tom llamas. and we start with breaking news as we come on the air. the killing seen live on facebook. the all-out manhunt under way for the alleged gunman in cleveland. police say graphic video shows the suspect walking up to his victim and opening fire at close range. authorities identifying the alleged gunman, he claims he has killed other victims. nearby cleveland state university on lockdown. students told to shelter in place. police describing the suspect as armed and dangerous. the fbi now assisting. eva pilgrim with the details coming in at this hour. >> reporter: tonight, an urgent manhunt for the suspect who appears to kill a random, elderly stranger live on facebook.

authorities also say the man claims to have killed others. >> found me somebody i'm about to kill. i'm gonna kill this guy right here. he an old dude. >> reporter: cleveland police are looking for this man, steve stephens. they say he broadcast himself committing a murder live on his social media page. >> can you do me a favor? can you say joy lane? >> what? >> can you say joy lane? >> joy lane. >> yeah. she's the reason why this about to happen to you. >> reporter: in the seconds before he pulls the trigger, stephens explains to his victim he is about to shoot him because of a woman. the family says the victim was robert goodwin senior, their 74-year-old father. >> this man right here was a good man. and i just hate he's gone. >> reporter: investigators are at the scene tonight and confirm they are investigating a homicide. police are actively searching multiple areas. >> be advised, male shooting, st. clair and superior. one male shot.

gsw to the face. happening now on facebook live. >> we want him to turn himself in. we will look until we find him. >> reporter: stephens was last seen in a white ford fusion, with temporary tags, wearing a dark blue and grey or black striped polo shirt. he is 6'1", 244 pounds. police say he is considered armed and dangerous. in a statement to abc news, facebook says we do not allow this kind of content on facebook, and it's a horrific crime. >> eva joins us live. we just heard you say, the suspect claims he's killed more people? >> reporter: that's right, tom. he claims he has killed multiple people. they have followed up on some leads, but have not been able to verify any additional victims. tom? >> eva, thank you. to overseas now, and the other big story we're following.

north korea's show of force. failing in spectacular fashion. some asking if u.s. hackers disrupted the missile test. that missile exploding seconds after launch. with the world watching. vice president pence arriving in south korea just hours later, calling the test a provocation. a u.s. carrier group on its way to the korean peninsula. president trump making a show of force of its own. the president's national security adviser, warning the u.s. will take action if necessary. is a north korean missile test still in the works? martha raddatz is in seoul tonight. >> reporter: u.s. commanders say the ballistic missile blew up almost immediately after launch. the failed missile test came as vice president pence was on his way to seoul. after landing, the vice president responding. >> this morning's provocation from the north is just the latest reminder of the risks each one of you face every day.

>> reporter: and tonight, that intriguing question. could a u.s. cyberattack have brought down the north korean missile? something a former british cabinet minister spoke about today. >> there's a strong belief that the americans, through cyber methods, have been successful on several occasions on interrupting these tests. and making them fail. >> reporter: but no proof, and no comment about the reports from the white house. but today, president trump's national security adviser, lieutenant general h.r. mcmaster told me he's confident in president trump's strategy for dealing with north korea. >> this problem is coming to a head. and so it's time for us to undertake all actions we can, short of a military option, to try to resolve this peacefully. >> reporter: that "problem" includes the looming threat of north korea's sixth nuclear test and those new missiles displayed over the weekend. the concern, north korea is getting closer to being able to

reach the continental united states with a missile. but if north korea pulls the trigger, this could be target number one. osan air base, just 48 miles from north korea. >> what we do here specifically is we are trained day-in, day-out to be fight tonight ready, as we say. >> reporter: f-16s on constant patrol. anti missile batteries primed and ready. we got an exclusive tour. major shawn walsh, an f-16 pilot, up in the skies training at least three times a week, within miles of the north korean border. >> when you look underneath your night vision goggles, you can see lights as far as you can see, it almost looks like daylight. and then, you look out the other side of your cockpit, and it is just darkness. >> reporter: while the failed missile launch was humiliating for kim jong-un, u.s. officials have no doubt he will try again to perfect a long-range missile with the capability of reaching the united states.

>> martha, thank you. for more, let's bring in steve ganyard. one of our abc news consultants. two questions. first, was the missile failure a complete waste of resources? and do you think jung-un will still try that nuclear test? >> it wasn't a complete waste, they will test and test until they get it right. and now, the potential underground nuclear test, intelligence analysts have been watching the complex closely to determine if it's ready to go. they've determined it primed, ready to go, so it could be a test any minute. and even though the administration said the north koreans would face serious consequences if they did so. >> steve, thank you. president trump returning from mar-a-lago tonight. the president lashing out at this weekend's nationwide tax march.

president trump talking about the rallies, saying the election is over. here's david wright. >> reporter: today, the president tried not to let tens of thousands of tax day protesters ruin his easter, attending services at the palm beach church where he married the first lady and where his son barron was baptized. earlier, the president tweeted, "someone should look into who paid for the small organized rallies yesterday. the election is over!" those rallies were organized, in 150 cities and towns nationwide. but small? and paid for? not so much. do you think he's going to get this message? >> i think he'll see it, and i think that he'll construe it as something else, like we're paid protesters. and we're not constituents of the united states, but that's not true. >> reporter: this weekend, coast-to-coast, that trump chicken was almost as high-profile as the easter bunny.

one protest saturday turned violent. >> what is your tax rate? >> it's none of your business. >> reporter: a year ago, candidate trump promised george stephanopoulos he'd release his returns eventually. >> i am under audit now, and as soon as the audit ends, i'll release my returns. >> reporter: later, trump changed his mind, insisting, as he did again today, that the election somehow settled the issue. but an abc news poll taken in january found 74% of americans say trump should release his returns. >> i'm a cpa in new york city, and he needs to show us his taxes. i showed mine. let's see yours. >> the only reason he's hiding is because there must be a bombshell in the tax returns. so just prove us wrong. >> reporter: many trump supporters are still willing to give him the benefit of the doubt. >> i think he's taking decisive action on what he wants to do, and he has good advisers, and he's strong. >> david wright joins us live. there's been talk that congress

could subpoena the tax records. where does that stand? >> reporter: in theory, it could happen. but it's unlikely as long as republicans control both houses. but that said, several states, including california and new york are considering bills to require candidates to release their taxes in order to qualify for the ballot. so in 2020, this may not be an issue. tom? >> david, thank you. overseas now, to the vatican. pope francis delivering his easter message to the world. tens of thousands filing st. peter's square. under tight security following terror attacks in europe. the pope condemning this attack in syria, killing more than 120 men, women, and children. linzie janis at the vatican. >> reporter: 60,000 catholic pilgrims pouring into st. peter's square under tight security. the threat of terrorism looming. pope francis stepping out on the balcony, using the traditional

easter message to condemn saturday's massive car bombing of buses carrying syrian families trying to evacuate. "yesterday saw the latest vile attack on fleeing refugees," he said. the blast engulfing the buses in flames, killing more than 120. a staggering 60 children among the dead. others left bloodied and badly wounded. the horrifying images evoking memories of the chemical attack earlier this month. but this was a suicide bombing, the residents leaving their villages as part of a swap agreement between rebels and the regime. tonight, the latest attempt to move roughly 3,000 syrians trapped by fighting stalled. in his mass, the pope adding an off-the-cuff sermon, acknowledging an abundance of war, sickness and hatred in the world, asking christians to open their hearts to those suffering. >> translator: why do so many misfortunes happen? where is the lord? >> reporter: the pontiff then

criss-crossing the square in his popemobile. not threatened by the attacks on churches in egypt at the start of the holy week. tom, the pope travels to egypt at the end of the month. he's going ahead with the planned trip despite security concerns. tom? >> linzie, thank you. we're also following developments out of turkey. president erdogan declaring victory for a vote giving new power to the presidency. calling the outcome an historic decision, opponents claiming possible tampering. they want to challenge at least 37% of the votes counted. back here at home, the severe weather threat. at least three tornadoes reported in 24 hours. including a twister tearing across nebraska. to the south, wildfires burning across hundreds of acres in central florida.

and tonight, dangerous storms on the move. here's rob marciano. >> reporter: tornado sirens blaring on easter sunday. ten million in the danger zone this holiday weekend. >> tornado on the ground, baby! >> reporter: this twister, captured in nebraska, tearing through fields and threatening nearby homes. >> wow! >> reporter: in texas, a mammoth wedge tornado. up to a mile wide. toppling power lines, uprooting trees, and tearing the roof off this house. and in logan, iowa, hail the size of baseballs ricocheting off the ground. meanwhile in florida tonight, a state of emergency. 110 wildfires burning right now, including this 500-acre blaze in volusia county. dry conditions and wind gusts fanning the flames. close calls, like this apartment complex evacuated over the weekend. but so far, no homes destroyed. >> let's get right to the forecast with rob. incredibly dry conditions down

south. >> yes, a third of the south is in severe drought conditions. no real rain in the forecast for the next several days. we are seeing flooding rains across southern oklahoma. and the severe thunderstorm watch in effect almost until midnight there. look at all the warmth building across the i-95 corridor. you felt it today. the cold front comes through, maybe showers and storms tonight and tomorrow. much cooler, back to reality this week, tom. >> rob, thanks so much. still ahead here on "world news tonight" this sunday, the new development in the case of the young google account manager, murdered on a jog. plus, the technology that may save swimmers from sharks. meet your new lifeguard, a drone. and a new complaint against united airlines. what this couple says happened to them, and why they lost their seats. stay with us. ♪

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back now with the new technology that could save swimmers' lives. drones acting as lifeguards, spotting sharks and swimmers in distress. here's marci gonzalez. >> reporter: this surfer recovering tonight. surgeons amputating part of his leg, after witnesses say a 12-foot shark attacked him off the coast of hawaii friday. >> he caught a white water and is yelling, yelling for help. once i saw the blood trail, i called 911. >> reporter: that same day, another surfer's leg bitten by a shark in florida, the fifth attack in that state in just the past week. now, researchers are testing a new high-tech method to warn beachgoers when sharks are swimming nearby. the system in australia uses a drone with an attached camera that not only sends back a live view of what's below, but distinguishes sharks from other marine life. >> we believe it's something that will give us the capability of seeing sharks a lot more readily. >> reporter: officials in

seal beach, california, already use similar technology, launching from the shore, quickly confirming shark sightings, instead of the old method of scouring the coast on wave runners, which used to take hours. >> the great advantage of this is, i can launch this, fly over the whole area, and land in all of about ten minutes. >> reporter: but australia's new system takes it another step further, using an onboard megaphone to alert beachgoers immediately. >> we think it should be rolled out worldwide. >> reporter: and they plan to start using the specialized drones there next summer. tom? >> marci, thank you. when we come back, moving day at trump tower. when the first lady plans to head to the white house. plus, the unusual and fierce encounter between the goose and the police detective. who won? stay with us. i use what's already inside me to reach my goals. so i liked when my doctor told me i may reach my blood sugar and a1c goals

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boston. the family of vanessa marcotte, who worked as a google account manager, says her spirit will live on and is expressing gratitude to the worcester county d.a. and state and local police for making an arrest. investigators say dna evidence links angel colon-ortiz with the crime. he's now in custody and expected to appear in court next week. the 27-year-old disappeared on a run last summer while visiting family. and we're learning about some new turbulence at united airlines. this couple on their way to get married say they were taken off a flight this weekend. the airline said the couple repeatedly tried to sit in upgraded seats. and were asked to disembark. this, after the uproar after a doctor was physically removed from a flight this week. and this headline about the first lady and barron trump. news reports indicating they're heading to the white house soon. the 11-year-old finishing up school in new york. now to a battle between

a police detective and a fierce goose. this clarksville officer on his way back to the office, running into some trouble. that goose, protecting a nest. delivering a major wing-slapping. at least that's what a local zookeeper calls it. that detective at one point falling down, but eventually escaping. the goose was not arrested. up next, when we come back here, the military family about to get the surprise of their lives. the lengths dad went through to shock his kids. we'll be right back.

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>> reporter: it took staff sergeant mathew hawke 27 hours, 5 flights, and more to get from afghanistan to nebraska and the cornhuskers locker room. it was a dream come true, and so much more. this was the last leg, from the battlefield to the football field. where matt, disguised as a husker, is about to surprise his wife and kids. his family, huge husker fans, are there as honorary team captains. they have no idea dad is back early from a ten-month deployment. but when hawke takes off his helmet, as his son is about to do the coin toss, this is what a megawatt smile looks like. and what a family's true surprise looks like.

smiles followed by tears as they have a family hug. the hawkes, spending an unexpected easter sunday together. >> when we found out about it, we had about five days to get me home. >> reporter: a surprise homecoming for one husker fan devoted to family, service, and football. gloria riviera, abc news, washington. >> we thank him for his service and for sharing his story. we thank you for watching on this easter weekend. i'm tom llamas in new york. "gma" first thing in the morning. have a great evening. good night.

i feel like we've lost him. >> tonight at abc 7 news at 6:00, a heart warming family after thieves steal something irreplaceable. it's a block party at oracle as they wait for a defense win. highlights and action coming up. plus. >> how wonderful the warriors have been to our family. >> the team rallies behind a cancer family that's had a difficult time. abc 76:00 starts now. >> announcer: live where you live this is abc 7 news. >> a soggy sunday, that's today will lead into a dry monday. don't get used to the spring sunshine just yet. good evening. i'm eric thomas. thanks for joining us. many woke up to the wet weather. in some places it kept coming down on all day. it poured on anyone outside this

afternoon. a live look now from the abc 7 roof cam, it's still soggy out there, but a break in the rain is coming and we're calling it a break in the rain. here's meteorologist trew >> we're still tracking showers on doppler 7. let's get you down the street where the showers are occurring at this hour, around santa rosa, guerneville, along the coast in bodega bay. even light turn around campbell, south bay, a couple turns inland in livermore. we'll be dealing with light showers on and off through the evening. keeping a 1 on the storm impact scale. it will be less than a tenth of an inch of rain. and it will be breeze i. as one storm exits tonight, a next storm is brewing out in the pacific. we'll talk about when that arrives, how much rain to expect, and finally some much brighter and warmer weather coming up in the full