[CaptainK]

He’s been arrested and charged with murder:

http://www.washingtonpost.com/local/crime/dc-police-say-man-arrested-believed-to-be-suspect-in-fatal-metro-stabbing/2015/07/06/5db906a2-23e5-11e5-b72c-2b7d516e1e0e_story.html?tid=trending_strip_5

[palmer]

Another update: http://www.washingtonpost.com/local/crime/victim-in-metro-slaying-stabbed-repeatedly-during-robbery-on- train/2015/07/07/8dd09132-249b-11e5-b72c-2b7d516e1e0e_story.html

A witness on the train told police that the attacker tried to take an item from Sutherland's waist area, and the two struggled as the man repeatedly punched Sutherland until he fell to the floor and cried for help, according to the affidavit. The witness saw something in the attacker's hand and then noticed the man throw Sutherland's cellphone at him as Sutherland lay on the floor. A second witness saw the assailant stomp Sutherland as he lay on the floor after he was punched in the chest

...

After stabbing Sutherland, Spires then walked through the Metro car and asked a witness "what y'all got" and then rifled through a person's pants, taking a fare card and a wallet, according to the affidavit. The document says Spires took $65 from the wallet and threw the wallet and the fare card to the ground.