http://www.kpho.com/news/14864617/detail.html

QUEEN CREEK, Ariz. -- A four-year-old boy suffered carbon monoxide poisoning after the boyfriend of the child's mother committed suicide in the garage, the Pinal County Sheriff's Office said.

A neighbor, Jason Whalen, said the first sign of trouble was a sound -- a shriek from the mother.

Deputies said when they got to the Queen Creek house Saturday night, they found a 30-year-old man and his girlfriend's son, 4, unconscious in the garage. more at link