At a news conference, Santa Fe County Sheriff Adan Mendoza said the initial examination by the medical examiner showed no sign of carbon monoxide, a colorless and odorless gas produced from kitchen appliances and other fuel-burning items. When it collects in poorly ventilated homes, it can be fatal.
Santa Fe County Sheriff Adan Mendoza told NBC's “Today” show that investigators were trying to sort out conflicting stories about the doors. He said several doors were unlocked and a rear door was open, which allowed two dogs that survived to go in and out. He also said he thinks the front door was closed but unlocked.
The Santa Fe County Sheriff's Office initially indicated "foul play was not a factor," but investigators quickly reversed that statement, calling the deaths "suspicious" amid an ongoing investigation.
The Santa Fe County sheriff said the actor’s pacemaker was inspected and last showed activity nine days before his body was found.