AP, Chicago :
A man has killed three people and wounded four others in a series of dramatic shootings that started on Chicago’s South Side and ended with the gunman’s death in a shootout with police in a car park north of the city.
Investigators are trying to determine a motive for the attacks, which began on Saturday afternoon with the killing of a 30-year-old University of Chicago student.
The student was shot while sitting in his car in a parking garage in the Hyde Park neighbourhood, Chicago police superintendent David Brown told reporters.
The gunman, 32-year-old Jason Nightengale, then “just randomly” walked into an apartment building a block away, where he shot a 46-year-old security guard who was sitting at the desk and a 77-year-old woman who was getting her mail, Brown said.
The guard was pronounced dead in hospital and the woman is in a critical condition, the Chicago Tribune reported. Nightengale went to another building and carjacked a man he knew, and then went to a convenience store and fired shots, killing a 20-year-old man and wounding an 81-year-old woman, Brown said. The woman is also in a critical condition.
After leaving the store, Nightengale fired shots at a 15-year-old girl who was riding in a car with her mother, leaving the girl in a critical condition, police said.
He then went back to the convenience store where Chicago officers were investigating the earlier shooting, and he fired shots at the officers. None of them were injured.