A 23-year-old veteran of the Iraq war shot and killed his pregnant wife, their 13-month-old daughter and three dogs before turning the gun on himself, authorities said Thursday.

Police in Superior, Wis., said Thursday that they do not know why Matthew Magdzas killed his wife, April Oles-Magdzas, 26, and their daughter, Lila. Investigators believe the killings happened Tuesday.

Tessa Buscko, a former colleague of Oles-Magdzas, says her friend was due to give birth by Caesarean section Wednesday to the couple’s second daughter.
Police Capt. Chad La Lor told the Associated Press that Magdzas did not leave behind a suicide note and that investigators have found no evidence the couple had money problems or was unduly stressed by the pending birth of their daughter. There was no indication either had been unfaithful.
La Lor said investigators plan to subpoena Magdzas’s military medical records to see whether he had complained of or been treated for signs of post-traumatic stress disorder.