Shots were fired in the area of the 4/20 marijuana rally being held at Civic Center Park in Denver, KDVR.com reports. Denver police say one person has been shot in the leg and another is down with unknown injuries. Witnesses say they heard three or more shots about 20 minutes after 4:20 p.m. Police swarmed the scene, and crime tape was around the pavilion where the celebration was being held. Aerial footage showed the massive crowd frantically running from the park. The pot celebration Saturday was the first since Colorado and Washington made marijuana legal for recreational use. Read more:...