Samantha Ronson or should I say both  Samantha Ronson’s and  bulldog Cadillac are the subjects of a police investigation. Tmz reported that Officials from the County Department of Animal Care & Control told  them  there is a criminal investigation underway to determine the  cause of death for Tiger, the 3-pound Maltese that was killed after Sam’s bulldog, Cadillac, got out of her apartment unit yesterday.

We’re told Ronson — who was sleeping at the time of the attack — is the subject of the criminal investigation.  

An Animal Control official tells us they will be looking at the circumstances of the attack and Cadillac’s propensity for violence.  As we first reported, Cadillac had attacked another dog a while back and had actually just come home from a 3-week socialization program.

Animal Control tells us this could be a 2 to 3 month investigation. I guess the 3 week socialization program didnt work that good.