SURPRISE, Ariz. (AP) — A man suspected of shooting his 6-month-old son multiple times after taking the boy and his mother hostage was found dead of an apparent self-inflicted gunshot wound in the rubble of a suburban Phoenix home that caught fire during a SWAT standoff, police said Saturday.

The boy was reported in critical but stable condition at a local hospital Saturday, Surprise police said in a statement. They said earlier his injuries suffered the day before were not believed to be life-threatening.

Officers went to the home in the city of Surprise northwest of Phoenix in response to an emergency call around 11:30 a.m. Friday from a woman who said she and her baby had been held captive there since 3 a.m. by the child’s father, police said.

The mother escaped with minor injuries and called 911 with a cellphone she said she borrowed from a nearby construction crew.