Criminal Minds: Legacy

A detective travels from Kansas to the BAU to request their help after he's discovered that 63 homeless people in his district have disappeared. The team is reluctant to take the case as the people haven't been officially reported missing and the chief of detectives doesn't want their help. As they begin to investigate, they discover the case is for real and by catching the killer's accomplice, they find the killer in time to save his most recent victim.