Tampa, Florida

A Florida man accused of planning to use explosives and weapons to "create mayhem'" in Tampa pleaded not guilty in court.

He is accused of a plot that included a car bombing, taking hostages and a suicide blast.

According to court records, he wanted "payback" for wrongs he felt were done to Muslims.  

Authorities say the alleged bomb plot was foiled, thanks to the local Muslim community and law enforcement.  

FBI agents arrested him on January 7, just after he allegedly made a video explaining his motives.