A photo of David Rozga is seen on a shelf at the home of his parents Mike and Jan Rozga, Sunday, March 27, 2011, in Indianola, Iowa. David Rozga killed himself last summer after dabbling with a ... more 
A photo of David Rozga is seen on a shelf at the home of his parents Mike and Jan Rozga, Sunday, March 27, 2011, in Indianola, Iowa. David Rozga killed himself last summer after dabbling with a product known as K2. Synthetic substances like K2 that mimic marijuana, cocaine and other illegal drugs are making users across the nation seriously ill, causing seizures and hallucinations so intense that thousands of them seek help at emergency rooms. less 
1 / 1
Associated Press | Photo By Charlie Neibergall
Wed, Apr 6, 2011 7:18 AM EDT