It appears this may have also happened at the Key Bridge Marriott in Arlington, VA.
A hotel robber who has struck four times in the District may have struck in Virginia as well.
Authorities say it happened Nov. 17, about 8 p.m., at the Key Bridge Marriott Hotel located in the 1400 block of Lee Highway in Arlington, Va. Police said the victim was a 57-year-old man staying at the hotel.
http://www.nbc4.com/news/3967874/detail.html