DENVER — The Denver Police Department is looking for a suspect after a security guard was shot and killed when he confronted a possible shooting suspect downtown early Friday morning.

The shooting happened in the 1500 block of Market Street just before 2 a.m., according to Denver police. One shooting victim was found in the area and critically injured. The security guard, identified as 28-year-old Lucardio Kroener, was apparently killed after confronting the suspect in that person's assault, according to DPD.

In a crime bulletin, DPD described the suspect as a black man who is between 25 to 35 years old with a stocky build, braided hair and facial hair. At the time of the shooting, police said he was wearing a dark-colored hoodie.

The suspect and his associates were seen running away from the scene of the crime, according to DPD.

Anyone with information about the shooting is asked to call DPD at 720-913-2000 or Crime Stoppers at 720-913-STOP. You can remain anonymous and could be eligible for a reward.