PARK CITY, KS - FEBUARY 26: Police tape hangs across the street in front of the house that Dennis Rader lives in February 26, 2005 in Park City, Kansas. Rader is the suspect whom police have arrested on suspicion of first-degree murder in connection with the 10 deaths now tied to the serial killer known as BTK. (Photo by Larry W. Smith/Getty Images)
Prince George's County police have arrested a homeless man they say beat another homeless man to death with a tree branch.
A judge ordered Guzman held without bond on Friday.
Police believe Guzman might have beaten Martinez after Martinez threatened to kill someone.
It can difficult to solve killings of homeless people who can be difficult to identify.