Grattan Township, MI- WOOD-TV -The freeze has now turned deadly. Investigators with Kent County Sheriff’s Department say Dan Hall’s son wandered into the home on Lessiter Northeast in Grattan Township just before 9 a.m.

Once inside, he found his father dead in the basement. His mother Penny was unconscious in a bedroom.

Investigators say a gas powered generator filled the house with the deadly carbon monoxide. Penny Hall was last reported in critical condition Saturday afternoon. Her family has asked the hospital not to release any more about her condition.