"There is just trauma, enough information to believe that we have a homicide that occurred here. They didn't perish in the fire," he said.
5 dead in apparent arson-homicide at Denver bar →
Police Cmdr. Ronald Saunier said the suspects went to Fero's Bar & Grill to rob it before closing time Wednesday, but he didn't go into details about how it turned into a murder case.
Police: 3 arrested in Denver bar killings, fire →