(NECN: Warwick, RI) - The Warwick Police Department continues its investigation into the assault and robbery that occurred at the Holiday Inn Express Hotel last Thursday evening. Investigators from Boston and Warwick continue to work closely together following up on tips and reviewing crime scene evidence. Authorities believe the case may be connected to last week's slaying in a Boston luxury hotel of a woman who advertised massage services on Craigslist. <img src="http://cms.necn.wuaala.com/files/2009/04/20/pic1.jpg" width="400"> <img src="http://cms.necn.wuaala.com/files/2009/04/20/pic2.jpg" width="400"> <img src="http://cms.necn.wuaala.com/files/2009/04/20/pic3.jpg" width="400"> <img src="http://cms.necn.wuaala.com/files/2009/04/20/pic4.jpg" width="400"> The four photos released Monday by Warwick police show a man in a dark jacket with a baseball cap pulled low, obscuring much of his face. If anyone has any information, please contact the Warwick Police Detective Division at: (401) 468-4200.