MILWAUKEE (CBS 58) -- Despite several objections from his lawyers last week, the trial for a Milwaukee man accused of killing a woman during rough sex in 2013 and then hiding her body begins Monday.

Kris Zocco is facing several charges in the death of Kelly Dwyer. He's also facing charges of trying to intimidate a potential witness.

A former cellmate of Zocco's says he tried to get him to kill an ex-girlfriend who is expected to testify at the trial.

Zocco's defense team has been arguing some evidence from Kelly Dwyer's computer is missing. They say it's important but the prosecution disagrees.

"The whole point is we don't know what we don't know. If there's something missing that we've never been able to look at, we don't know what it could've contained. That's relevant," said Craig Mastantuono, Zocco's attorney.

"Making this kind of focal point of the trial is a distraction. It's not like this was an item that had significant evidence on it," said prosecutor Sarah Beth Hill.

The trial will begin at 8:15 Monday morning. It's expected to last at least two weeks.