Chattanooga gunman's kin encouraged his trip to Jordan

Federal investigators say they've received hundreds of leads, but they are still trying to figure out why Chattanooga shooter Mohammod Youssuf Abdulazeez opened fire on two military sites in Tennessee last Thursday.

A source close to the family tells CBS News Abdulazeez's parents encouraged his seven-month trip to Jordan last year because they hoped visiting relatives would help him recover from what they say was his state of depression. A government source tells CBS News that Kuwait-born Abdulazeez did not travel outside of Jordan during that visit, and he did not go to Iraq or Syria to fight or train with ISIS.

Investigators know he recently visited a public gun range and that the 24-year-old, a practicing Muslim, was pulled over in April for driving under the influence.

On Saturday, Abdulazeez's family expressed their shock in a statement saying: "The person who committed this horrible crime was not the son we knew and loved. For many years our son suffered from depression."

Afzal Sheikh, who asked CBS News not show his face on camera, regularly saw Abdulazeez and his family at the mosque they attend.

"He might have [been depressed], but ... I didn't see any difference in his attitude, his appearance, I said so. Just every day, I mean, it was just normal I mean like, every time I saw him," Sheikh said.

The shooting left five service members dead, including 21-year-old Marine Lance Cpl. Skip Wells, who carried on a long family tradition of fighting for his country.

"We send our service people in harm's way overseas. That tends to be when we worry about them most. We don't tend to worry so much when they're here at home," his father Kip Wells said during a news conference.

Navy Petty Officer 2nd Class Randall Smith died Saturday of his wounds. Police escorted his body to the Chattanooga airport Sunday.

In the wake of the tragedy, Tennessee Gov. Bill Haslam has called for a review of security procedures at military sites across the state.

"The recruiting centers, actually the reserve centers themselves -- please give these guys something. Give 'em something just in case," Wells said.

The recruitment center where the shooting began was to be re-opened Monday. Overnight, the FBI finished processing the crime scene where dozens of bullets were fired. The Navy operational support center where the shooting spree ended remains closed. Investigators are still collecting evidence in would could be another week of processing the scene.