Shelton, 37, has been charged with murder for stabbing the 45-year-old Delaney, police said.
The two got into an argument about 8:15 a.m. inside Delaney’s home in the 6600 block of South Vernon, according to police and the Cook County medical examiner’s office.
Shelton then used a knife to stab Delaney in the chest, authorities said. He was pronounced dead at the scene at 8:42 a.m.
The attack stemmed from a domestic fight, police said, though their relationship was not clear. Shelton’s home address was listed on the same block, but it was not known if he lived with Delaney.
Shelton was arrested after the stabbing and charged with first-degree murder, police said. He was due in bond court Tuesday.
—Chicago Sun-Times Wire