Patton, 27, of 1202 Champlain St. was convicted Friday of two counts of aggravated murder with a gun specification and one count of aggravated robbery.
Judge Dean Mandros sentenced him today to two consecutive life without parole sentences, as well as a consecutive term of 10 years in prison for the aggravated robbery plus three years for the gun specification.
Patton was found guilty of killing Veronica Serrano, 34, and her son Timothy Blair, 14, on Nov. 25, 2011. After a week-long trial, a jury of eight women and four men deliberated for about two hours before returning the verdict Friday.
Patton maintained his innocence and said he planned to appeal.