Most of the dead had been shot execution style, in the head. One outlier took a bullet in the back. All eight of them were bound for the morgue. That was Tuesday morning in Englewood, on the west side of Chicago. It is considered one of the most dangerous places in America. But across the country, blood lust is in the air, with homicide rates that had been beaten down over the last 25 years soaring skyward. And cops and citizens alike are again wary of a trip to the bodega ending with a toe tag. William Bratton is probably the most famous cop in America. The native Bostonian was the quarterback of efforts to wrestle homicide to the ground in the Hub, New York City and Los Angeles. In the Big Apple, the number of murders hit a peak of about 2,200 in 1992 before falling to around 375 in 2015 — the same number of homicides New York had in 1937. Now, Bratton is warning that as homicide rates again spike, the nation’s cities can expect a “very, long dangerous summer.” He has a point. Bratton told CNBC the latest tidal wave of murder came suddenly. “Unlike the last crime epidemic that took decades to buildup to the early ’90s, this one has occurred, literally, overnight,” Bratton said.