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Prosecutors: Teen arrested in slaying urinated on hands to thwart gunshot test

A teenager arrested minutes after the slaying of a man in the Park Manor neighborhood Tuesday afternoon urinated on his hands while in an interview room after investigators told him a gunshot residue test would be done, prosecutors said today.

Quovadus Mahomes, of Dixon, is accused of killing 27-year-old Devin Common and wounding two other men, ages 27 and 30. Cook County Criminal Court Judge Donald Panarese ordered him held without bail today, said Cook County state’s attorney spokeswoman Tandra Simonton.

The shooting happened about 12:20 p.m. Tuesday in the 7400 block of South Champlain Avenue - the 41st murder of the year, surpassing the monthly total from 2012, which was an increase over 2011.

Mahomes was charged Wednesday with one count of first degree murder and two counts of attempted first degree murder, according to Chicago police. He had been arrested near the scene of the shootings, and while in custody, urinated on his hands after being told police would test them for gunshot residue, prosectuors said today.

Common's younger brother Antonio was killed about 15 months earlier, in October 2011. The 23-year-old was shot in the head in an alley about four blocks north of where his older brother was killed Tuesday. 

Common died at the scene and the two others were taken to John H. Stroger Jr. Hospital of Cook County.

Common and the two other men were walking on Champlain, with Mahomes about a half-block ahead of them, when another person went up to the three men and started talking with them just after 12:10 p.m., prosecutors said. Mahomes turned around and started walking toward the group, then pointed a gun at them and started to shoot.

The 30-year-old was shot in the leg and shoulder on the street, and the 27-year-old ran into a gangway before being shot, also in the leg and shoulder, prosecutors said. Mahomes kept firing as he came closer, hitting Common three times—once in the chest and once in both the front and back of the neck. In all, Mahomes fired eight shots, prosecutors said.

The person who hadn’t been shot hit the ground as the firing started, then got up and followed Mahomes as he ran south on Champlain. The witness flagged down police who were arriving at the scene, and pointed to Mahomes as the shooter, prosecutors said. One of the victims also was able to identify him.

Police found an empty .45-caliber semiautomatic handgun nearby, in the direction that Mahomes had fled. At the scene, police found eight .45-caliber shell casings.

Mahomes was taken to a police station for questioning, and told his hands would be tested for gunshot residue. A video recording of Mahomes in an interview room shows him, still in handcuffs, taking off his pants, urinating on his hands and clothes and wiping his hands on his clothing, in what prosecutors said in a court document was “an obvious attempt to thwart” the test.

Police and prosecutors have given no information on a possible motive for the slaying. While Common had a criminal background, police said he had no known gang affiliation.

Mahomes is due back in court on Feb. 19, Simonton said.

pnickeas@tribune.com

Twitter: @peternickeas

Copyright © 2015, RedEye
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