The Flat-Tire murders refer to five connected, unsolved murders that happened in the United States, in the southern state of Florida in 1975. Investigators theorized that the killer deflated the tires of the victims' vehicles and offered them assistance before killing them. The suspect was given the name "South Dade Killer" because the killings were only in the vicinity of Cutler Bay (known at the time of the killings, and until 2005, as Cutler Ridge) and the Palmetto area of South Miami-Dade County.