Baltimore Sun: As record heat baked Baltimore, a wave of violence unfurled across the city: six shootings and eight people wounded over a period of less than eight hours.
The first shots were fired around dinnertime Wednesday, and the violence continued until after 2 a.m. Thursday. Police have no suspects in any of the crimes which included two double shootings and believe the seven wounded men and one injured woman will survive.
Several academic studies of crime suggest that it's no coincidence that...