A large group of residents at a Walnut Creek community for people 55 and older listens to a June 1 presentation about medical marijuana. The meeting at the Rossmoor community was held for people who wanted to learn about cannabis as an alternative to opiates and other medications. The Medical Marijuana Education and Support Club has over 600 people on their email list and is the second largest club in Rossmoor. (Doug Duran/Bay Area News Group)
