The man who was killed at an apartment complex Friday morning was identified Saturday as Gregory Martin, 46.
Martin was a maintenance worker at Park Ridge Apartments.
An autopsy by the El Paso County Coroner's Office found the cause of death to be a stabbing.
"It is believed that the victim interrupted an apparent burglary in progress when he was confronted by the suspect," a press release from Colorado Springs police said.
Early indications from the scene indicated that Martin had died from blunt trauma.
On Friday, a 21-year-old man was arrested in connection with the killing at the complex, just off of Academy Boulevard near North Carefree Circle. Isaiah Jackson was taken into custody shortly after police went to the apartments and found Martin's body, police said.
Jackson was caught at 2760 N. Academy Blvd. at Offices at the Park about 9:30 a.m.
A knife was recovered near the scene, said Barbara Miller, Colorado Springs police spokeswoman.
Ron Phillips, 44, said he received a telephone call Friday a little after 10 a.m. from a co-worker who lived in the apartments telling him that it looked like someone had broken into his first-floor apartment.
Phillips, who works at N. Murphy Construction Inc. and has lived at Park Ridge for about four years, left work right away.
"I was a little panicked," Phillips said. "My friend told me that someone had possibly gotten injured or killed."
When he got to the apartments, police had blocked off the parking lot and he was not allowed to go into his apartment.
"The window had been broken and screen slashed," Phillips said.
The complex, he added, has had multiple burglaries the past couple of months. The last burglary occurred about three weeks ago, he said.
Residents of the apartments, who were being interviewed by authorities as they left or entered, provided information that helped investigators track down the suspect and the knife, Miller said.