A Marine is being held as a suspect in the apparent murder of a fellow Marine

Lance Cpl. Mario Arias Jr. was found dead in his barracks room Sunday morning. Another Marine was found outside the barracks after jumping from a third-story balcony, the NCIS said. The second Marine is being treated for injuries and is being held as a homicide suspect.

Arias was a 19 year old young man from Canoga Park. He was an air-crew trainee with Marine Light Attack Helicopter Training Squadron 303, Marine Aircraft Group 39, 3rd Marine Aircraft Wing.

The suspect's name was not released.

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