After opening arguments from Read’s defense attorney Alan Jackson and the Commonwealth’s special prosecutor Hank Brennan, a key witness was called to the stand.

Here’s a look at a timeline of the entire case, from the key 6-hour period surrounding O’Keefe’s death and the ensuing legal battle over who is responsible.

Prosecutors allege that Karen Read killed her boyfriend in a fit of rage. Her defense says she was framed. Live updates on second day of testimony.