Adam Strauss, 33, of Chicago.

A 33-year-old man who entered a Crystal Lake home and stole jewelry in 2017 while being unregistered as a sex offender has been sentenced to more than four years in prison.

Adam Strauss, 33, of the 3900 block of North Plainfield Avenue in Chicago, was charged with residential burglary, two counts of theft, and violating sex offender registration.

A bench trial took place in June and McHenry County Judge Michael Coppedge found Strauss guilty on all charges except residential burglary.

The charges stem from an incident that occurred on July 16, 2017, where the Crystal Lake Police Department received a theft report.

Court documents said that Strauss entered a home in the 800 block of Crabapple Drive in Crystal Lake while the residents were away.

Strauss stole a 14 karat gold ring that had a marquis cut diamond, worth thousands of dollars, the court documents said.

The Crystal Lake Police Department was able to determine that Strauss entered a home using cell phone records, prosecutors said.

Police were also able to determine that Strauss had failed to register as a sex offender with local authorities during his time living in Crystal Lake.

On Tuesday, Coppedge sentenced Strauss to four and a half years in the Illinois Department of Corrections. He will serve the sentence at 50%.

The case was investigated by members of the Crystal Lake Police Department and prosecuted by Assistant State’s Attorneys Tyler Mikan and Kyle Bruett.