Why the tourniquet, a relic from the earliest days of medicine, is back amid the gun violence epidemic

PHILADELPHIA —The way the blood spurted from the bullet wound, Lt. Robert Friel knew he didn't have long. He crumpled to the floor of the CVS on South 10th Street, unable to move his leg. Friel had never been shot before, but after 28 years with the Philadelphia police, he knew enough to realize the bullet had struck a major artery. The lieutenant hung on while a colleague subdued his assailant, then finally called out the words that would save his life: You need to tourniquet me or I'm going to die! Amid an epidemic of gun violence that shows no signs of abating, Philadelphia is turning more ...