Patrick Kelly, a Chicago police officer, and his friend, Michael LaPorta, spent an evening at bars drinking. At 4 a.m. they retired to Officer Kelly’s home where an argument ensued, apparently about Kelly’s mistreatment of his dog. LaPorta announced that he was leaving.As LaPorta was leaving, Kelly was accused of pulling out his service revolver and shooting LaPorta in the back of the head, causing catastrophic and permanent injuries to LaPorta. LaPorta is severely disabled and requires 24/7 care.LaPorta’s estate sued the …