Jeremiah Hughes

As investigators spread out, authorities quickly circulated an alert urging nearby residents to look out for anything suspicious.

Not far from the chaos, Jeremiah Hughes, a UAB pre-med student, was sitting in his dorm's laundry room when he heard the explosion echo through Birmingham.

But there, one man stood out, walking away calmly.

He found the man's behavior strange and decided to see where the stranger was going.