Fla. mom murder trial enters 2nd day of testimony

By KYLE HIGHTOWER | May 25, 2011 | 9:45 AM EDT

Casey Anthony reacts in court during her trial at the Orange County Courthouse, Tuesday, May 24, 2011, in Orlando, Fla. Anthony is charged with killing her 2-year-old daughter Caylee in 2008. (AP Photo/Red Huber, Pool)

ORLANDO, Fla. (AP) — A former roommate of Casey Anthony's boyfriend has taken the witness stand on the second day of the Florida mother's murder trial.

Cameron Campana was the first witness called by prosecutors Wednesday.

The 25-year-old Anthony is charged with murdering her 2-year-old daughter Caylee almost three years ago. She has pleaded not guilty.

Campana is a club promoter in Cleveland who was attending Full Sail University in Orlando in 2008.

The state says Anthony used duct tape to kill her daughter, while the defense is arguing that Caylee accidently drowned.

Anthony previously said a baby sitter kidnapped the girl, but her attorney suggested a different set of events during his opening statement Tuesday.

If convicted in the case, Anthony could be sentenced to death.