[Will88]

A longtime friend told CNN that Abdulazeez changed after spending time in the Middle East and "distanced himself" for the first few months after returning to Tennessee.

"Something happened over there," Abdulrazzak Brizada said. "He never became close to me like he was before he went overseas. ... I'm sure he had something that happened to him overseas.

The investigators will probably find their answers in the Middle East. He spent several months over there and they need to learn where he spent his time and with whom.

[Genoa]

they need to learn where he spent his time and with whom

If they care to. And then we hope it doesn't get swept under some rug.