Scores of an estimated 10,000 people expected to gather for a 4/20 marijuana rally in Civic Center Park mill about April 20, 2012 in Denver. (Photo by Marc Piscotty/Getty Images)
Coloradoan's Celebrate 4/20 With Marijuana Smokeout
Micah Moffett, a quadriplegic since a motorcycle accident in 1991 who says medical marijuana laws in the state have been a blessing for his pain, joins with an estimated 10,000 people expected to gather for a 4/20 marijuana rally in Civic Center Park April 20, 2012 in Denver. (Photo by Marc Piscotty/Getty Images)
Coloradoan's Celebrate 4/20 With Marijuana Smokeout
Javier Martinez uses a sign to advertise for LoHi Cannabis Club dispensary as an estimated 10,000 people were expected to gather for a 4/20 marijuana rally in Civic Center Park April 20, 2012 in Denver. (Photo by Marc Piscotty/Getty Images)
Coloradoan's Celebrate 4/20 With Marijuana Smokeout
Crystal Guess of Denver attempts to gather signatures for an initiative which would remove marijuana from the controlled substances list in Civic Center Park April 20, 2012 in Denver. (Photo by Marc Piscotty/Getty Images)
Coloradoan's Celebrate 4/20 With Marijuana Smokeout
Thousands gather to celebrate the state's medicinal marijuana laws and collectively light up at 4:20 p.m. in Civic Center Park April 20, 2012 in Denver. (Photo by Marc Piscotty/Getty Images)
Coloradoan's Celebrate 4/20 With Marijuana Smokeout
Tyler Shumway of Aurora lights up a joint as thousands gathered to celebrate the state's medicinal marijuana laws and collectively light up at 4:20 p.m. in Civic Center Park April 20, 2012 in Denver. (Photo by Marc Piscotty/Getty Images)
Coloradoan's Celebrate 4/20 With Marijuana Smokeout
Rob Vallela of Denver smokes marijuana as thousands gathered to celebrate the state's medicinal marijuana laws and collectively light up at 4:20 p.m. in Civic Center Park April 20, 2012 in Denver, Colorado. Vallela has a medical marijuana card for severe nausea and said it has been helpful for his condition, adding "if you're happy, then your body feels good." (Photo by Marc Piscotty/Getty Images)
Coloradoan's Celebrate 4/20 With Marijuana Smokeout
Thousands of supporters of legalized marijuana light up at exactly 4:20 p.m in Civic Center Park April 20, 2012 in Denver. (Photo by Marc Piscotty/Getty Images)
Coloradoan's Celebrate 4/20 With Marijuana Smokeout
Fast Eddy Aki'a of Hawaii smokes a joint as thousands gathered to celebrate the state's medicinal marijuana laws and collectively light up at 4:20 p.m. in Civic Center Park April 20, 2012 in Denver. (Photo by Marc Piscotty/Getty Images)
Coloradoan's Celebrate 4/20 With Marijuana Smokeout
A supporter of legalized marijuana holds up a small blunt as thousands gathered to celebrate the state's medicinal marijuana laws and collectively light up at 4:20 p.m. in Civic Center Park April 20, 2012 in Denver. (Photo by Marc Piscotty/Getty Images)
Coloradoan's Celebrate 4/20 With Marijuana Smokeout
A hazy cloud rises over thousands gathered in Civic Center Park to collectively smoke marijuana and celebrate the state's medicinal marijuana laws April 20, 2012 in Denver. (Photo by Marc Piscotty/Getty Images)
Coloradoan's Celebrate 4/20 With Marijuana Smokeout
Supporters of legalized marijuana light up at exactly 4:20 p.m. in Civic Center Park April 20, 2012 in Denver. (Photo by Marc Piscotty/Getty Images)
Coloradoan's Celebrate 4/20 With Marijuana Smokeout
A person identifying himself as Jermagisty Tha King of Denver lights up a 28 ounce blunt at exactly 4:20 p.m. as thousands gathered to celebrate the state's medicinal marijuana laws and collectively light up at 4:20 p.m. in Civic Center Park April 20, 2012 in Denver. (Photo by Marc Piscotty/Getty Images)
