This undated file photo provided by the Leon County Sheriff's Office shows Scott Paul Beierle. According to a case study of the crime by the U.S. Secret Service, Beierle, who signed up for a yoga class in Tallassee, Fla. pretending to be a student before he opened fire in the studio had a well-documented and lengthy history of disturbing behavior toward women. And had the clear warning signs been noticed, the killings may have been prevented. (Leon County Sheriff's Office via AP, File)