Also, in the 1990s, federal prosecutors imprisoned major gang leaders, which disrupted the structure and chain of command of the largest and most powerful groups in the city's history.
With the buildings razed and the chiefs behind bars, gang cohesion dissolved and the pecking order crumbled.
Barnes, 26, and Untrell Oden, 27, with first-degree reckless homicide and other counts in Sandra’s death.
Both men have previous armed robbery convictions and were charged with possession of a firearm by a felon. A detective who later processed the scene recovered a pistol from a garbage can in the living room as well as a semiautomatic rifle from the bedroom.
The most troubled tend to gravitate toward others with similar problems and struggles at home and at school.
Street gangs have long been a part of Chicago's social fabric.
Gang murders were committed to further the group's criminal enterprise—to expand or protect drug-selling markets, to fortify geographic territories and protect the turf, to avenge integrity and to ensure legacy.
But following the razing of the public housing developments—epicenters that provided the groups with a centralized power base—the members of mega-gangs were scattered around the city's poorest communities.
Gang-related shootings and homicides burgeoned from the 1970s through the 1990s.
During those decades, gangs had well-defined leaders, structures and purposes.