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CHICAGO -- A standoff on Chicago’s Far South Side ended Thursday afternoon 11 hours after it begun.

Chicago police SWAT teams say they entered a home at 103rd and Union around 2 p.m. and found the body of Kevin Robinson inside.

After trying to talk him out early this morning, police say in the 9 a.m. hour he leaned out a window and fired 12 rounds at police who then returned fire.

A little more than three hours later, SWAT teams deployed the gas canisters into the home

Through a bullhorn Robinson's mother pleaded with him to come out.

After not seeing or hearing any motion inside not being able to reach him by way of cell phone the decision was made to go inside. Robinson was found dead in an upstairs bedroom.

Officers say he was wanted for a triple murder late last night.

Robinson is believed to have killed his girlfriend 26 year-old Makeesha Starks, her father 50 year-old Jerome Wright and 26-year-old Kiara Kinard, a relative, in the city's Englewood neighborhood.

According to the Chicago Tribune the suspect shares a 7-year-old child with Starks.

In 2014 she took out an order protection against him in 2014 but rescinded in January of 2015.

Police say Robinson had a long rap sheet. He served 3.5 years for convicted armed robbery, convicted aggravated battery and was arrested for attempted murder

Police have not commented on Johnson's connection to the home in which he was found.

Sources tell WGN they believe this was the home of his current girlfriend.

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