Lorenzo Lonnell Lancaster, 42, was shot and killed on March 18, 2016, in the Humboldt Park neighborhood of Chicago. The shooting occurred about 1:52 p.m. in the 3700 block of West Division Street; he was struck in the chest and taken to Norwegian American Hospital, where he was pronounced dead at 2:38 p.m. Lancaster lived in the 3400 block of West Ohio Street.

Detectives from Area North and the Chicago Police Department have investigated, but no arrests have been announced. Witnesses have been reluctant to cooperate, and investigators say that lack of cooperation has impeded progress. A memorial gathering held on the third anniversary of his death was marred by another shooting, underscoring ongoing violence in the area. Family and friends remember Lancaster as generous, often helping children with homework and giving them money.

Does anyone have information about Lancaster, his circle, or that day in Humboldt Park that could assist the investigation?