. >> reporter: and michael mimbo says after the attack, he realized the possible significance of a whitean he had seen speeding away from their apartment complex on saturday. is it upsetting, disturbing, troubling? >> yeah, especially if it's something that you knew, someone that you commonly said hello to. it's really hard to believe, but then all the evidence are there. >> reporter: the 12 people arrested at that complex have now been released. but tonight british media reports a dozen molotov cocktails were found in the back of the attackers' van. and scott, police are still trying to figure out if the three men had help from anyone else. >> anna werner in our london newsroom tonight. anna, thank you. and we're back in just a moment. no matter who was in there last. protection. new lysol power & fresh 6 goes to work flush after flush for a just-cleaned feeling that lasts up to 4 weeks. lysol. what it takes to protect. >>> at least ten students who were going to harvard in the fall were told to forget it after the university came across their facebook messages. some were so offensive,

. >> reporter: and michael mimbo says after the attack, he realized the possible significance of a whitee'd seen speeding away from their apartment complex on saturday. is it upsetting? disturbing? troubling? >> yeah, especially if it's someone you knew, someone that, you know, you said hello. to it's really hard to believe, but then all the evidence is there. >> reporter: the 12 people arrested at that complex have now been released, but tonight british media reports a dozen molotov cocktails were found in the back of the attackers' van, and, scott, police are still trying to figure out if those three men had help from anyone else. >> pelly: anna werner in our london newsroom tonight. anna, thank you. will a man bearing a grudge and a gun went on a shooting rampage today near orlando, florida. he killed five people and then himself. mark strassmann is there. >> reporter: around 8:00 a.m., john robert neumann, jr., walked into the same company that fired him in april and opened fire. at the awning supplier for r.v.s, he killed four men and one woman before killing himself. shelly adams'

today we met michael mimbo who lives steps away from a building that was raided. he said but was his friend and recently started talking to neighborhood kids about islam. >> he became a bit more erratic, but how he would communicate with the kids and what to believe. and stuff like that. >> and kids would go home and tell their parents. >> yeah, yeah. >> hours before the attack. mi mimo saw but with a van like that one flying down the street. >> kids were on bicycles. quickly speed around the bends. it was unusual. >> another neighbor told britain that when he rented a moving van one of the suspects took an odd interest. >> he was getting quite inquisitive about the van. oh, where can i get a van? how much was it. details of where he could get a van. and he said, i might be leaving shortly with my family as well. >> police now revealed more about how they stopped the attack at 10:00 p.m. saturday night. responding just eight minutes after it started, eight officers firing 50 rounds to take them down. in hail of bullets described as unprecedented for the uk. >> the

today we met michael mimbo who lives steps away from a building that was raided. he says butt was his friend and had recently started talking to neighborhood kids about islam. >> his viewed changed a lot. he became a bit more erratic about how he communicated with the kids and telling them what to believe and stuff like that. >> reporter: and then the kids would go home and tell their parents? >> yeah, yeah. >> reporter: and hours before the attack mimbo saw butt with a white van like the one used that night flying down their small street. >> ten-mile-per-hour zone and you're driving and kids there. the bends, quickly speeding on the bends. it's unusual. >> reporter: another neighbor told britain's itn when he wanted a moving van, one of the suspects took an odd interest. >> he's getting inquisitive about the van. saying where can i get a van from. just asking real details. how much was it and just asking where he could get a van basically, and then he said to mow, oh, i might be leaving shortly with my family as well >> reporter: police have now revealed more abo

today, we met michael mimbo who lives steps away from a building that was raided.ecently started talking to neighborhood kids about islam. >> his views changed. he became mowre erratic about hw he communicated with the kids. >> reporter: the kids would tell their parents? >> yeah. >> reporter: hours before the attack, he saw butt with a white van like the one used that night flying down their small street. >> ten miles per hour zone. you are driving and kids playing with bicycles. you quickly speeding on the bends, it's unusual. >> reporter: another neighbor said when he rented a moving van, one of the suspect's took an odd interest. >> is inqukwiquisitive about th. where can i get the van? how much is it? asking where he could get a van basically. he said to me, i might be moving shortly. >> reporter: the police have revealed more about how they stopped the attack at 10:00 p.m. on saturday night. responding just eight minutes after it started. eight officers firing 50 rounds to take them down. in a hail of bullets described as unprecedented in the uk. the situatio

. >> and michael mimbo said after the attack he realized the possible significants of a white van he had seen speeding away from their apartment complex on saturday. >> was it upsetting, distshing, troubling. >> yeah, especially if it is someone that you knew, someone that, you know, you commonly said hello to, it was really hard to believe. but then all the evidence are there. >> rose: joining me from london give white from "the washington post" and in jork john micklethwait. from bloomberg news, what happened today. >> we had the disclosure the two names of at sail ants. so we know for a fact now that these were locals, these were people who lived in london. they lived in the east london neighborhood of barking, about a half hour journey by either tube or by car from where the attack took place. one is a pakistani origin, the other is of arab origin. he was either from morocco or libya. he told people different things. one of the assailants was someone who was known to security forces. he was someone who had been on their radar for a few years. he was someone who was known in the n