ANTIOCH -- Police have identified a suspect in last week's shooting death of a 24-year-old Pittsburg man.

A $500,000 arrest warrant has been issued for Michael Elijah Pulliambanks, 18, whom police have linked to the slaying of Arnold Muckleroy. It was Antioch's 11th homicide of the year, more than doubling the five recorded in 2009.

The suspect also goes by Michael Banks, and is known to frequent the Bay Area and Sacramento regions. Police say he should be considered armed and dangerous.

On Dec. 20, Muckleroy was dropped off by a friend on Rockspring Way about 5:10 p.m. to meet with people, and he got into a green Ford Escort, according to police and witnesses. Moments later, he was shot in the head and pushed from the car, which sped away.

Muckleroy died the next morning. A vehicle found the next day was confirmed over the weekend to be the same one described by witnesses.

Muckleroy was remembered by friends as an up-and-coming rapper who went by the stage name "Young Boov 5000" and recorded at a home studio in Oakley. He was known in the local music scene, performing at bars and venues in Contra Costa County.

Police have not released a motive for the shooting, which added to a violent December in Antioch. It began Dec. 2 with the death of a 2-year-old boy after the toddler and his 4-year-old brother found a loaded handgun in their mother's bedroom.

That was followed by a stabbing death Dec. 6 near Buchanan Road and a dragging death on Cavallo Road the next day, with both homicides involving female victims and male suspects.

Authorities ask anyone who spots the suspect to contact their local authorities or Antioch police at 925-778-2441.

Robert Salonga covers public safety. Reach at him at 925-943-8013. Follow him at Twitter.com/robertsalonga.