they are looking for clues on the computer of 24-year-old muhammad aziz. he killed four marines yesterday on a rampage yesterday in chattanooga. we are joined now live with new information about the gunman and his victims. >> it is being called an act of domestic terrorism and law enforcement is on high alert across the country. >> after the horrific shooting rampage at two centers in chattanooga, tennessee we are learning more about his tours in iraq. and a second victim has been identified as skill wells of marietta georgia. >> it's heart breaking circumstances for these individuals who have served our country with great valor to be killed in this fashion. >> reporter: in the light of day sullivan, wells were killed and two others were injured in the fire fight. minutes before the same shooter pulled up to this navy recruiting center shooting one officer in the leg and taking off before anybody could respond and now we learn more information about the accused killers, described by classmates as an all american kid. she was in the class when they saw the

tried to figure out a motive in yesterday's mass shooting that left four marines dead, 24-year-old muhammad aziz was the gunman born in kuwait but raised in the u.s. she was described as an all american boy. officials had warned of possible attacks across the country on 4th of july, and now they want to know if abdul aziz was connected to that threat. >> they was an athlete and college graduate his former high school coach is stunned. >> he seemed serious, but the more i had him in class he turned out to be a cutup a joker all the time. >> he has no known connections to terrorist organizations but investigators are look nothing the possibility that he was inspired by their internet propaganda, in the last year isis is urging followers in the u.s. to attack police and military installations, the group is posting photos and addresses of soldiers saying what are you waiting for kill them in their own land. this year alone the fbi has made arrests in at least five plots aimed at domestic military facilities. we see individuals motivated about the i ideology of a group but are acting independently of

that gunman is identified as 24 year old muhammad aziz. they say he is a natural eyes the u.s. citizen from cue wayne, living in chattanooga as a scene he had mixed martial arts. his former coach described him as meek. >> i observed him to be very meek, very i mean, that kid never frowns, i mean, he always smiles, always shook my hand, how are you doing i never heard him cuss. >> officials say abdul was not on any terror watch list. we do have live report for from chattanooga coming up in our 5:00 hour. >>> defense department is increasing security at several federal facilities out after bun dance of caution this the scene at the naval support center in philadelphia on the 700 block of robbins avenue in lawncrest, philadelphia police have added patrols to military sites throughout the city. >>> stay with "eyewitness news" for continuing coverage of the chattanooga shooting rampage. as new details emerge, we will bring them to you on tv and on line at cbsphilly.com. >>> after finding him guilty of murder, jurors will decide if james holmes will get life in prison or the death pe

. >> using a automatic rifle authority say, 24 year old muhammad aziz opened fire at the marines at this military site before he was shot and killed by police. while the kuwait born gunman was not on the government's radar, source tells cbs news his father was under investigation years ago for possible terror ties. that probe did not lead to after owes. at this point authorities aren't sure what motivated abdul yousez before driving 7 miles away and killing the marines, but looking into whether he was motivated or influenced by isis. >> you know isis will last several weeks, been putting out social media across the world, telling people that they will enjoy ten times the reward in the afterlife if they commit an act of jihad martyr for ice us. >> authorities plan to analyze the gunman's computer and phone records for clues. >> reporter: so far authorities have not released the names of any of the victims publicly. this is just one of three crime scenes right now investigators are processing this morning erika. >> thank you. >> out after bun dance of caution, the defense department is inc

meanwhile new details about that deadly rampage, it took muhammad abdul aziz to blast his way into the marine center he was armed with an assault rifle handgun and a vest full of extra ammo, he made his way through the center shooting those he encountered until he was shot and killed by police. >>> a wild fire chases people out of a national park, the visitors that had to flee from the flames during thirz vacation and this could be the best buy onic hand yet, the abilities it's giving one cancer survivor when "action news" comes right back. music: etta james "at last" (plays throughout) ♪♪ sometimes, at last doesn't happen at first. ♪♪ ♪♪ your dad just kissed my mom. ♪♪ turning two worlds into one takes love. ♪♪ helping protect that world takes state farm. >>> federal authorities have a new warning about isis, the fbi says the group inspired many americans to kill on u.s. soil that brings concerns about an outside attack from al qaeda and they have rallied americans through a year long social media campaign. they still have hundreds of investigations pending. >>> mean while secretary o

he himself again it was muhammad you receive an abdullah aziz. icture you're looking at right now. he was shot to death. we're told it is reported by local police officers. five dead in total. four marines and the shooter. muhammad you receive abdul aziz. i intented you. go. >> when you look at this kind of terrorism, look at the arrests that were made in the northeast last week, ten days ago. whether they're directly isis trained in the middle east, whether they're inspired by directly isis trained in the middle east whether they're inspired by isis here in the united states it's all isis. and we have to go after that particular group. because one way or the other they're going to get here. >> on the phone, i'm sorry to interrupt you, sir. congresswoman blackburn. what can you add to this? perhaps your own reaction. >> well of course there is dismay and concern for those that have lost their life anner that families. and i think this is why we are seeing the women begin to say, national security is the top issue. and as some of your guests prior

. >> reporter: authorities have identified the suspect as muhammad yusuf abdul aziz corner in kuwait shown here in a mug shot from a drunk driving arrest earlier this year. we now know the 24-year-old was an electrical engineer with a good-paying job. he was an avid wrestler seen here competing in an amateur mixed martial arts event. in 2012 he graduated from the university of tennessee. his mom proudly posting these photos on facebook. >> we're going to look at the shooter. we're going to do an intense look at him to see if -- what his connections are. we'll look at his friends, family associates, anybody who is associated with him, to determine the cause or the reason why he conducted this attack. >> to be honest with you, he was like any other kid. he was a wrestler an athlete at the school. >> reporter: his former high school gym teacher was shocked to learn he was behind the ruthless killings. >> it was like a punch in the stomach. until you got to know him he seemed kind of serious. the more i had him in class, he turned out to be a cut-up. he was a joker all the time. >> repor

muhammad youssef abdulazzez. who led in lived in chattanooga tennesseoid as the shooter aziz went to recruiting center opened firehat was described basically as a drive-by type shooting after that, he drove to the navy operations center about seven miles away, that is where thank you four marines were killed abdulazeez a kuwaiti born national was not on the fbi radar. >> we have no idea at this point what his motivation was behind this shooting. >> at this point we don't have anything that directly ties him to international terrorist organization. >> according to articles maria abdulazeez made two blog postings said life short birth talked about understanding message of islam, law enforcement all over the country have been increasingly concerned about potential of loan wolf self-radicalized terrorists inspired by isis, called for attacks on u.s. military personnel the fbi, certainly will be trying to figure out if that was the case, maria. maria: we will watch that, important components like berman the threat of domestic terrorism to play a critical role in the presidential election joining us with more former wh

muhammad cartoon contest in texas as the sort of threat the u.s. now faces. the men behind the attack were inspired by among others the recruiter azizbeen killed on the fourth of july. in addition to the increased coalition air strikes, there could be expanded special operations forces going after isis sanctuaries and leaders including its military commanders and recruiters and propagandists. brian ross abc news new york. >> thank you, brian. a solemn occasion in london today as mourners mark the 10th anniversary of the 7/7 terror attack. security beefed up at today's ceremony at the official site in london's hooitd park and a national minute of silence is also being observed. four suicide bombers attacked a bus and three subway trains during rush hour a decade ago. the attack killed 50 people. >> hours before the deadline for a nuclear deal iran has another demand. it wants the international sanctions lifted including amps embargo that iran says that's not a condition for concluding the nuclear negotiations. but now would be a good time to lift the sanctions. the u.s. and several other world powers oppose that. negotiators are meet