The Twisp, Wash. Police Department has reported Thomas Pfaeffle, a Black Diamond resident, was “shot and killed” at the Blue Spruce Motel in Twisp at 10:41 p.m. Friday.

A 57-year-old Seattle man has been arrested and charged with second-degree murder and second-degree assault. He was booked into the Okanogon County jail.

According to the release, Pfaeffle was a “master live concert audio mixer” who worked for bands like Nirvana, Queensryche, Aerosmith and the Black Crowes.

He is reported to be 49-years-old.

The Twisp police investigation indicates Pfaeffle may have been trying to unlock the wrong door in the motel, believing it was his room.

According to the release, “Pfaeffle was shot through the door from within, and then collapsed behind cars parked in front of the motel units.”

Pfaefle’s wife was with him at the time of the shooting.

The release stated Pfaeffle was transported by Aero Methow Rescue Service to Mid-Valley Hospital in Omak, Wash. where he died.

The Twisp police reported a Renton man staying in an adjacent motel room, suffered minor injuries when another bullet traveled through the wall. The man’s injuries did not require medical attention.

The suspect in the shooting was inside the motel room when officers arrived. Chief Rick Balam contacted the man by phone and the suspect agreed to surrender without incident.

Pfaeffle owns and operates a recording studio, The Tank, which is described on his Web site as located “in woods of Black Diamond.”

According to the Web site Pfaeffle “has been professionally active in the recording, touring and sound reinforcement industry for more than 30 years.”

Pfaeffle was also an audio production instructor at the Art Institute of Seattle.