09/18/2008 05:12 am ET Updated Dec 06, 2017

Man Charged In Murder Of Chicago Cop, DCFS Worker

A 26-year-old West Side man was charged with the murder of Chicago Police Officer Robert Soto and DCFS supervisor Kathryn Romberg, Chicago police announced Monday morning.

Jason Austin of the 500 block of North LeClaire Avenue was charged with two counts of murder and one count of robbery, the Tribune reports, and held without bail by at a Cook County Criminal Court hearing Monday afternoon.

Watch CBS 2's video of the announcement:

Soto, 49, a veteran police detective off-duty at the time, and Romberg, 45, a DCFS supervisor who also worked part-time as a realtor, were shot early Wednesday while sitting inside Soto's SUV in front of Romberg's condo in the 3000 block of West Franklin Boulevard.

Police believe robbery was "the sole motive," according to the Sun-Times:

Chief of Detectives Thomas Byrne said robbery was the "sole motive" in the murders. "Somehow this robbery went obviously wrong," he said.

It's unclear what, if anything, was taken from Soto, whose wallet was on the floor of the SUV, police said. Credit cards were found in his wallet but no cash, they said.

Police say Austin has five prior convictions, one of them for possession of controlled substance.

Soto's description of his killer to police shortly before he lost consciousness was essential to the arrest, the Tribune reports:

Soto played a key role in finding Austin, said Chief of Detectives Thomas Byrne.

"If we didn't have Detective Soto's own words, motive would have been open to speculation," he said, adding that robbery was the motive.

After he was shot, Soto called 911 and said he been shot and was the victim of a robbery. He said three men had fled in a maroon car. Police found Soto's empty wallet on the floorboard of his sport-utility vehicle.