An arrest warrant is issued for a Machesney Park man for two recent armed robberies on Rockford's northwest side. Police say 22 year old Tyler Wickson is wanted for the December 20th armed robberies at Family Dollar, 3124 North Rockton Avenue, and Domino's Pizza, 2922 North Main Street. Police say the suspect used a knife to rob both establishments. No one was injured during either robbery. Anyone with information concerning the whereabouts of 22 year old Tyler Wickson of Machesney Park is urged to call Rockford Police at 815-987-5824 or Crimestoppers at 815-963-7867.