and scientists found dna on the tip of the turkey baster. >> the only dna on the turkey baster is at the tip and it belongs to david castor. what in the name of heaven is he doing committing suicide by turkey baster? i've never heard of such a thing. >> so investigators now wondered if they were dealing with a murder. >>> the official ruling of suicide in david castor's death was a hard sell for the investigators who were at the scene. they hadn't seen many suicide cases where ethylene glycol was used, and there were several contradictions. >> my gut was telling me there was something more going on with to fuel economy... to quality... today's chevrolet has it all. and great news - the chevy 72 hour sale has just been extended. you'll get 0% apr for 72 months. plus no monthly payments for the rest of the summer. 0% apr for 72 months plus no monthly payments for the rest of the summer. the chevy 72 hour sale ends monday. find new roads at your local chevy dealer. >>> the official ruling of suicide in david castor's death was a hard sell for the investigators who were at the scene. the

>> what in the name of heaven is he doing committing suicide by a turkey baster. >> the evidence at thecene confounds investigators. >> there's something more going on with this. it just wasn't right. >> it's creepy, it's chilling. >> and it would take years before the forensics could figure it all out. >> this case was a forensic bonanza for me. >>> the heating and air conditioning business was a lucrative one for david castor. his perfectionism and attent

also told the grand jury days before her disappearance torres purchased a turkey baster and bleach whichould be used as an applicator at one to destroy evidence we >> reporter: are still waiting for the child they to be set they're still running through the preliminaries. trial date >> pam: officials say a suspect in a fatal hit and run in sonoma county over the weekend has a long history of violations. >> pam: officials say john mesker struck and killed a man with his car on petaluma hill road near hunter lane on saturday afternoon. >> pam: according to court records, mesker has felony convictions for theft and drugs and several misdemeanor charges that go back to 2000. >> pam: his latest charges were back in june for a probation violation from a d-u-i arrest. >> pam: c-h-p says they're still looking for him. >> pam: watch she even reported a harassment and the call it the being alternately fired her. >> jacqueline: temperatures topping triple digits and a number of places such as fairfield antioch current and antioch things have cooled down quite a bit in the past few hours. increase i