Ex-trooper arrest in 2014 shooting death of pregnant wife

This Friday, March 17, 2017, photo provided by the Montgomery County District Attorney's Office in Norristown, Pa., shows former Pennsylvania State Police trooper Joseph Miller, charged Friday with the 2014 shooting that killed his pregnant wife JoAnna Miller and their newborn baby. She died at a hospital after delivering the girl via an emergency C-section. (Montgomery County District Attorney's Office via AP) (The Associated Press)

A former Pennsylvania state trooper has been arrested in the 2014 shooting death of his pregnant wife.

Prosecutors in suburban Philadelphia say 36-year-old Joseph Miller was arraigned Friday on two counts of involuntary manslaughter in the deaths of Joanna Miller and their newborn baby.

Joanna Miller was 24 weeks pregnant when she was shot in the head at their East Norriton home. She died at a hospital after delivering the girl via an emergency C-section. The baby died shortly thereafter.

Joseph Miller told police he was cleaning his gun feet away from her when it discharged.

Prosecutors say a two-year investigation showed the gun was 3 to 6 inches from Joanna Miller's head when it went off.

A message seeking comment from his lawyer wasn't immediately returned.