References Further reading 2011 animal deaths 2011 disestablishments in Ohio 2011 in Ohio 2011 in the United States October 2011 events in the United States Animals shot dead by law enforcement officers in the United States Animal deaths in Ohio Animal welfare Former zoos Suicides by firearm in Ohio Deaths by firearm in Ohio Zoos in Ohio Zoos disestablished in 2011 Zanesville, Ohio Missing or escaped animals