Roger Clark sentenced in Carl Diener murder case

A man charged in the murder of an Arlington health club worker is scheduled to be sentenced Friday.

Roger Clark III, 20, pleaded guilty to first-degree murder charges in connection with the stabbing death of the 57-year-old Carl Diener.

Police say Clark, along with his 24-year-old cousin, Javon Martin, killed Diener as he walked to his job at a health club.

Martin is expected to go on trial in later October.