Cleaning crews spent much of Saturday cleaning the crime scene as police continue their hunt for the killer.
Thirty-year-old Javier Robinson is wanted for brutally murdering his roommate at a halfway house in Upland.
The victim's family says that the crime never should have happened.
"There was no supervision," the victim's uncle Adam Barrasa said. "They were here and I'm sure that all these guys are on medication and to what degree they were being supervised supposedly they don't even have a supervisor here."
Police were called to the home on Friday. Officials say the attack was so violent that they don't know if the victim was beaten to death or stabbed. Autopsy results are pending.
Investigators say they are extremely concerned for the public given Robinson's extensive criminal history, including pleading not guilty for reason of insanity to a crime.
"We have a suspect who is on the run," Upland Police Sgt. Cliff Mathews said. "He committed a murder for no apparent reason that we are aware of and his violent criminal past. That leads us to great concern for the community at large.
Robinson is believed to be driving another housemate's car that he stole. The car is a light blue 1995 Nissan Sentra 4-door with license plate number 4NFR443.
If you have any information on this crime or the whereabouts of the suspect you are asked to call Upland Police at (909) 946-7624.