Defense launches suicide theory

The defense's first witness is forensic pathologist Vincent DiMaio.

DiMaio retired last year as chief medical examiner of Bexar County, Texas. He is also a widely used expert witness.

Spector attorney Christopher J. Plourd spent more than an hour going over DiMaio's credentials. Nearing the noon hour and the end of the jury trial for Tuesday, DiMaio stayed what may the crux of his testimony: "People think the most difficult cases are homicides. That's not true. It's suicide. People do not want to accept suicides. They will try to make suicides homicides."

The defense will ask DiMaio to point out how gunshot residue, blood spatter and other evidence could show Lana Clarkson shot herself.