Houston ? Three children were found shot dead in their beds Sunday at a suburban Houston apartment building, and their father was charged with their murders after surviving an apparent suicide attempt, authorities said.

Muhammed Goher, 47, was charged with three counts of capital murder in the Sunday morning shootings, said Harris County Sheriff’s Deputy Jamie Wagner.

Goher was in stable condition Sunday afternoon at Ben Taub Hospital in Houston, where he was being treated for what investigators say was a self-inflicted gunshot wound to his head, Wagner said. A sheriff’s office statement said he was expected to survive.

Goher’s two daughters, ages 14 and 7, and a 12-year-old son were killed in the shootings, which were reported around 9:45 a.m. The apartment is attached to a convenience store where Goher worked, about three miles south of Houston’s Bush Intercontinental Airport.