CONCORD, N.H. (AP) — New Hampshire’s attorney general will detail the killing of Greenland Police Chief Michael Maloney and wounding of four drug task force officers as they tried to serve a warrant on a drug suspect in April.

At a press conference on Friday Attorney General Michael Delaney will discuss the state police investigation into the circumstances behind the shooting of the 48-year-old chief just days before he was scheduled to retire.

Police say 29-year-old Cullen Mutrie opened fire on the officers as they approached his house. Mutrie then killed companion Brittany Tibbetts before shooting himself to death.

The four drug task officers survived their gunshot wounds.

Investigators seized four computers and three cell phones from the home.