The state Supreme Court denied a flurry of legal challenges Wednesday from convicted murderer Richard Allen Davis, who is on Death Row for the 1993 kidnapping and strangulation of 12-year-old Polly Klaas of Petaluma.
Davis raised more than a dozen claims he hoped would set him free, including that he was mentally incompetent to stand trial and was incapable of forming the required malice or premeditation.
Davis also filed claims stating he was subjected to improper law enforcement tactics such as sleep deprivation and nicotine withdrawal and was threatened by mental health workers.
The seven-member high court denied each of Davis' claims, but said he could renew one challenge after an execution date is set.
Davis, a career criminal, was convicted of abducting Klaas from a slumber party at her mother's house. Her murder led to the adoption of the state's three-strikes sentencing law.
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