johnson is one of the 12 people killed by aaron alexus -- alexis. plan to close gaps in the process which failed to pick up red flags from the gunman's background. alexis did not disclose all the details of his criminal history when he enlisted in 2007. he answered no asking questions if he'd ever been arrested or charged with a felony. he was arrested in seattle in 2004 for shooting out the tires of a construction vehicle in what he called an anger fuelled blackout. the office of personnel management reports he denatured the tires. they did not learn about that arrest until after monday's attack. >>> police are looking for vandals who toppled over a stone monument of the ten commandments on capitol hill. located behind the supreme court. a christian outreach ministry installed the tablets outside the offices about 7 years ago. the group's president says the tablets were angled so justices arriving at the court would be able to see them. >>> dangerous mold in a family apartment sent a 9 month old baby and its mother to the hospital. it may still be

so how did the deceased gunman, 34-year-old aaron alexus with two gun related brushes with the law in texas and seattle as well as mental health issues get a security clearance that gave him access to a military facility in the heart of the nation's capital? it turns out the secret clearance for civilian it contractor is at the low end of the security bar, and security experts say given the sheer volume of background checks, alexis' profile did not set off any alarms. >> it is not that difficult to get a security clearance if you do not have major red flags in your background. if you have anger management issues but have not seeked treatment, if you have an arrest record that doesn't trigger any type of indications of violence, that there's nothing else in there, then there's no reason to deny a person a security clearance from a safety perspective. >> reporter: even with a security card, how did alexis get a shotgun into the building? 52 convicted felons got access due to flaws in an access control system. a former national security official says in the end there's no substitute for

his name is aaron alexus, he's 34 years old and previous incident on his record that might have raised some scrutiny if people had paid attention to it at the time he got his clearance to work as a defense department or a military contractor in this facility. he was arrested september 4th of 2010 by the ft. worth police, excuse me, ft. worth police in ft. worth texas for recklessly discharging a firearm within the limits of a municipality. that's considered a class a misdemeanor. it was determined there that he was cleaning his gun in that instance so he had folks on lockdown here all day today. as you can see behind me is more police officers escorting out folks from the base as they're being released, being released in buses so we're having large groups of people bussed out with police escort. they're being moved to an offsite position. some will be witnesses, of course, to today's atrocity and they'll be interviewed by authorities to try to gather more information, but this facility was on lockdown today. the united states senate was on lockdown today. now we're seeing the security

. >> aaron alexus stalking a holloway with a sawed off shotgun in hand.as prepared to die. you can see him sneaking around corners, ready to shoot anyone as he stealthfuly moves about. his guns read end to the torment. not what ya' ll say. and believing he was delusional. the assistant director quoted alexis's writings. >> that is what has driven me to this. >> alexis shot and killed 12 people at the military base before law enforcement killed him. authorities say he had a valid pass onto the base as a defense contractor. >> after the shooting here at the navy yard, defense secretary chuck hagel says warning signs may have been missed. he ordered a review of background checks at military bases worldwide. >> we need to know how an employee was able to bring a weapon and ammunition onto a dod installation. >> the fbi says alexis did not give any hint that this attack was imminent. >>> hewlett-packard says it is cutting ties with the sub accurater that navy gunman alexis worked for. it has said that it ran two background checks on alexis and only turned up a

. >> aaron alexus stalking a holloway with a sawed off shotgun in hand.he was prepared to die. you can see him sneaking around corners, ready to shoot anyone as he stealthfuly moves about. his guns read end to the torment. not what ya' ll say. and believing he was delusional. the assistant director quoted alexis's writings. >> that is what has driven me to this. >> alexis shot and killed 12 people at the military base before law enforcement killed him. authorities say he had a valid pass onto the base as a defense contractor. >> after the shooting here at the navy yard, defense secretary chuck hagel says warning signs may have been missed. he ordered a review of background checks at military bases worldwide. >> we need to know how an employee was able to bring a weapon and ammunition onto a dod installation. >> the fbi says alexis did not give any hint that this attack was imminent. >>> hewlett-packard says it is cutting ties with the sub accurater that navy gunman alexis worked for. it has said that it ran two background checks on alexis and only turned

commercial you and i both talked about an email that i got from a viewer in idaho who said who did aaron alexuseck? the same guy who cleared edward snowden. you said the same thing. >> it raises the same issues. who is work are for the federal government? who is working in the most sensitive areas? what is their background? how effective is it it i have been through background checks, they are pretty extensive at some levels. very extensive at other levels. the question becomes is the process good enough. we still obviously don't know what the motivation is. was there mental health issues? with hippa, privacy, that's a challenge getting to that. >> harris: his father has told authorities on one of his previous arrest which included some violence as reported in the police documents in seattle and fort worth, texas that he a mental disturbance of some sort. it might have, according to him, stemmed from being present on 9/11 in 2001 here in new york. >> lots of connections from obviously his time here in new york. so the anger fueled blackout he said he had in seattle with the construction workers

aaron alexis today. agents say it shows him moments before he killed 12 people. you can see alexus walking up and down the hallway. the fbi says no indication he was targeting specific people, but it appears he did suffer from mental illness. alexis was dilutional and believed he was being influenced and controlled by electromagnetic waves. he ended up getting killed in the shootout with police. >>> a big waste of time. that's what senators are calling the 21-speech a of fellow senator ted cruz. to pass the time the senator from texas spoke about his opposition to obama care and read the dr. seuss book "green eggs and ham." he was trying to delay lawmakers to pass a spending bill that would prevent the government from shutting down on september 30th. the senate, including cruz, unanimously decided to move ahead and debate their own version of the bill before sending it back to the house. >> this was all about elevating the debate in the public and giving the american people a chance to speak. >> for lack of a better way of describing this, it's been a big waste of time. >> the new