A U.S. Air Force sergeant stationed at Joint Base Pearl Harbor-Hickam was found guilty of aggravated assault and child endangerment in the 2017 beating of his daughter.

Sgt. Caleb Humphrey was convicted as a result of a court martial, said Sgt. Nicholas Brown, a public affairs specialist for the 15th Wing at Joint Base Pearl Harbor-Hickam.

Humphrey was sentenced to three years of confinement, dishonorable discharge, forfeiture of all pay and allowances and demotion to the lowest rank, Brown said.

Humphrey and his wife, Natasha Beyer, were accused of beating their seven-day-old daughter, Avaline, causing a skull fracture, brain bleeding, rib fractures and bone lesions.

The daughter’s injuries prompted an investigation into their son Grayson’s death, which happened a year prior.

The son’s death had initially been ruled a “natural” death, but upon further investigation, the Honolulu Medical Examiner’s Office found that it was caused by blunt force trauma to the head.

Humphrey and Beyer received insurance money after their son’s death.

Beyer’s court martial is expected to take place next month.