But on Thursday California’s Supreme Court vacated the guilty verdict, citing a new state law inspired by the case. He told the jury Richard’s teeth caused a mark that was found on his wife's hand after she was killed. The Supreme Court said in its ruling the case against Richards was based on contested circumstantial evidence. Testimony about the bite-mark convinced a jury to convict William Richards of murder in the death of 40-year-old Pamela Richards in 1993. California lawmakers changed the law after the Supreme Court upheld Richard’s conviction in 2012, rejecting the argument that an expert’s change in testimony was grounds for a reversal.

Source: Fox News May 28, 2016 18:56 UTC