Cops investigating the death of the sister of Hollywood producer Jill Blackstone say the siblings had planned to commit suicide together before Blackstone backed out.
The investigation began last Saturday when Wendy's body was discovered in a in a San Fernando garage with a charred grill at her feet and a suicide note nearby.
Our law enforcement sources tell us, they believe Blackstone and her sister Wendy — who was deaf and partially blind — made the suicide decision and Jill executed the plan by putting a lit BBQ in their closed garage, which was supposed to fill the air with deadly carbon monoxide gas.
TMZ broke the story, Jill called a friend who called 911, and when paramedics arrived they found Wendy dead and Jill with severe carbon monoxide poisoning. They believe Jill was trying to kill herself along with Wendy but had a change of heart at the very last moment.
[image via KTLA]