Marines death being handled as a death investigation not a homicide investigation by Metropolitan Police Department. MPD headed by Peter Newsham a Comet Ping Pong and James Alefantis accomplice.

https://www.marinecorpstimes.com/news/your-marine-corps/2019/01/03/marine-involved-in-dc-barracks-shooting-relieved-of-guard-duty-as-death-investigation-continues/