He's wanted on second-degree murder charges.
George Marten Williamson had three outstanding warrants when officials pursued him Friday.
Authorities were searching for him earlier this week.
Anyone who knows of his whereabouts should call 911, police say.
The suspect had barricaded himself in his home more more than seven hours.
An arrest warrant for second-degree manslaughter charges has been issued for Joseph James Fohrenkam.
An underage victim was sexually assaulted during the armed robbery.