A day after a 24-year-old Kuwait born man allegedly killed four people in a shooting rampage in Chattanooga, Tennessee, investigators removed potential evidence from the man's home. 

Investigators are examining electronic devices belonging to the alleged shooter, Muhammad Youssef Abdulazeez, but it does not appear he left much social media presence. 

However, he visited the Middle East for seven months in 2014 including Jordan, from which his father hails. 

Officials said when Abdulazeez returned from the Middle East in November, he had changed.

He had a new beard and began attending religious services more frequently. 

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