Governor Hickenlooper is vetoing a bill that would have allowed the legal use of medical marijuana by those with autism. The governor met with some parents of autistic children yesterday ahead of his decision. Hickenlooper said earlier in the afternoon that he had never heard from a pediatrician who would back such a treatment. The bill did not have the support of the head of the state Department of Public Health and Environment. So far, the governor has vetoed nine bills from this year's legislative session.