Smokin': Cannabis lovers revel in the freedom to smoke marijuana during the 4/20 festival this weekend in Denver. It was the first time the annual celebration was held since Colorado legalized pot for recreational use. On Monday, however, state lawmakers moved to tighten rules on marijuana products in the wake of two tragic deaths thought to be related to the drug. Story, A5. (Associated Press photographs)

Photo by: Brennan Linsley

Smokin': Cannabis lovers revel in the freedom to smoke marijuana during the 4/20 festival this weekend in Denver. It was the first time the annual celebration was held since Colorado legalized pot for recreational use. On Monday, however, state lawmakers moved to tighten rules on marijuana products in the wake of two tragic deaths thought to be related to the drug. Story, A5. (Associated Press photographs)