GARRISON, Iowa (AP) – Authorities have released the name of a worker killed in an accident at an eastern Iowa rock quarry. The Benton County Sheriff’s Office identified him as 30-year-old Michael Lee Griffith, who lived in Vinton. First responders were sent around 1:15 p.m. Wednesday to Wendling Quarries, just southeast of Garrison. They found Griffith had been trapped in a rock bin and had already died. Details about what happened haven’t been released. The accident is being investigated.