Tyshon Anderson, 18, was fatally shot on November 23, 2013, in Chicago’s South Chicago neighborhood. He was attending a party in an apartment building when an assailant approached him in the building’s lobby and shot him in the head.

Family and friends posted memorials and gathered outside the apartment building after his death. His killing occurred during a year of high violence in Chicago, particularly affecting young men, and is described as part of the broader cycle of violence tied to poverty, limited opportunity, and entrenched gang culture in high-crime neighborhoods.

If anyone knew Tyshon, saw activity in that apartment building that night, or has information about the shooting, please share what is known.