Mahdi Hassan Ali was 17 when he shot and killed three men at a convenience store in Minneapolis' Seward neighborhood in January 2010. Ali was ruled eligible for parole after 30 years for two of the killings, but had to serve a mandatory sentence of life without parole for the premeditated killing of the third man. A Hennepin County judged recently ruled Ali was eligible for parole for the third slaying, but because the sentences are consecutive he is unlikely to be released.

Brian Lee Flowers, 16, and Stafon Thompson, 17, are serving life sentences for first-degree murder for a 2008 double-slaying in Minneapolis: A woman was stabbed more than 100 times and her 10-year-old son, a witness to his mother's death, was killed by a television smashed over his head.

Lamonte Rydell Martin was 17 when he and a 19-year-old man "assassinated" a man who begged for his life in a north Minneapolis alley in May 2006. Christopher Lynch, 19, was shot about a dozen times in the gang-related killing.

In another Minneapolis gang-related killing, 17-year-old Prentis Cordell Jackson was found guilty in November 2006 of the premeditated murder of 15-year-old Michael "Tony" Bluntson, who was shot in the face.

Jeffrey Charles Pendleon Jr. was 15 when he and four accomplices kidnapped, stabbed and beat Robert Berry Jr. to death in Redwood County. The September 2004 killing stemmed from an argument at a party filled with heavy drinking and marijuana smoking.

Tony Allen Roman Nose, then 17, sexually assaulted and stabbed a 17-year-old woman to death with a screwdriver in July 2000 in Washington County.

In 1996, Timothy Patrick Chambers stole a car at a mall in Prior Lake, led police on a 35-mile chase through three counties at speeds up to 115 miles per hour, then intentionally slammed his car into the unmarked squad car of a Rice County deputy, killing him.