As ARLnow.com first reported yesterday, a suspect in the case, Roger K. Clark III, has pleaded guilty to first degree murder in the case. In a statement of facts entered as part of the guilty plea, prosecutors say robbery was the motive behind the murder — and that Clark wasn’t the only perpetrator.
According to the statement, Clark and his cousin, Javon Martin — then 20 and 24 years of age, respectively — were driving around Arlington County early on the morning of Dec. 29, 2009 looking for someone to rob. They encountered Diener, 57, near the intersection of N. 13th Street and N. Hudson Street, three blocks from the Clarendon Metro station. It was around 3:00 a.m. and Diener was on his way to a part-time job at a local health club, police said at the time.
