Kristopher Miller, 27, was found shot to death on the front porch of his Minneapolis apartment in the early morning hours of May 11, 2011. He worked at North High School, where he was remembered for greeting students each morning. He left behind family including two young daughters.

Investigators focused on Derrick Trevor Griffin, a 40-year-old associate minister, and determined jealousy was the motive after Miller had spent time with Griffin’s estranged wife. Surveillance showed a white Cadillac like Griffin’s near the scene, cell phone records placed Griffin in the area, and ballistics matched a shell casing at the scene to a handgun recovered from a home connected to Griffin. A recorded jailhouse call captured Griffin telling his estranged wife not to cooperate with police.

A grand jury indicted Griffin on first-degree premeditated murder. Griffin was convicted and received a mandatory sentence of life in prison without the possibility of parole. Does anyone have memories of Miller at North High or information about that night that could add context to the case?