Henry Police Maj. Jason Bolton said the victim's cellphone was taken from her car Sept. 26 while it was parked at East Lake Academy in McDonough, The Atlanta Journal-Constitution reported Thursday.
"The suspect apparently took a picture of himself on the victim's phone, and due to her settings, it automatically uploaded to her Facebook page," Bolton said.
Bolton said investigators are now working to identify the suspect, who is believed to have been driving a black Toyota RAV 4 with tinted windows.
Beautician charged with giving client fatal silicone butt injection
Duggar sisters unveil Christian dating rules in new book