BOISE, Idaho (AP) — A 4-year-old boy doctors say suffered what’s known as an internal decapitation in a car crash in southwestern Idaho is expected to make a full recovery thanks to a good Samaritan who held his head steady.

KBOI-TV reports that Killian Gonzalez and his mom, Brandy Gonzalez, were heading home to Nevada when ice on State Highway 51 caused a head-on crash May 22.

Leah Woodward and her husband, a police officer stopped to help. Woodward held the child steady for more than half an hour until emergency responders arrived.

Woodward says she remained calm despite panicking inside.

Killian is recovering at a children’s hospital in Boise from the rare condition in which his skull was separated from his spine.

Brandy Gonzalez broke an arm, ankle and leg. She’s recovering at a different Boise hospital.