MESA, Ariz. (AP) -- Mesa police say the deaths of a man and woman found in a school parking lot are being investigated as a murder-suicide. Sgt. Tony Landato says passers-by at Poston Junior High called 911 around 10:45 a.m. to report a suspicious vehicle with someone who appeared to be injured. Landato says officers arrived and found the body of a man and a woman who was injured inside the vehicle. Authorities say the woman was taken to a hospital where she died. Landato says police are not disclosing the manner of death but preliminary evidence indicates a murder-suicide.He did not release their identities but described them as young adults. Detectives say there is no connection between the couple and the school. Investigators plan to reopen a school parking lot Sunday afternoon.