Loop

A man who’s amassed more than 80 criminal cases in Cook County under at least 20 different aliases has been sentenced to three years in prison for stealing a blind man’s guitar at the Jackson Blue Line platform.

Police are working to track down the offender who put a knife to the neck of a CTA passenger and robbed him on the Monroe Blue Line platform Wednesday morning.

A 29-year-old man worked with three juveniles, including a 13-year-old, to rob two women at gunpoint on the Roosevelt Red Line station Sunday afternoon, prosecutors said Tuesday.

Police arrested Demon Robinson, 30, after he allegedly attacked the second woman in the Loop on Sunday afternoon. Judge David Navarro ordered him held without bail on two counts of robbery.

A man who’s on parole for three felonies boarded a Green Line train at the Roosevelt station and then robbed and sexually assaulted a female tourist, prosecutors said.