Georgia prosecutors placed Jose Ibarra, the suspect accused of murdering Augusta University nursing student Laken Riley, at the scene of the crime on the morning of Feb. 22.

A former roommate of the man charged with murder in the death of Laken Riley — the Georgia nursing student whose killing set off a political firestorm over immigration — testified Monday that he is the man seen in a video throwing away a jacket that prosecutors say had Riley’s blood on it.