Following the mass shooting that killed 11 people in Monterey Park, a local hospital is hoping to save lives by teaching people how to help those with traumatic injuries. In a demonstration called, “Stop the Bleed,” lessons are taught on how to use a tourniquet to stop life-threatening blood loss. “Every time you hear something tragic like this on the news, it sparks you to say, ‘Well, what can I do?'” said Belen Mackenzie, trauma program director at Pomona Valley Hospital Medical Center. “This came from the realization that people were not necessarily dying from the gunshot wound itself or...