Re posting this bit..
Bbm A bullet to the mouth as Chorley 8 suggested could mean a mob type hit to silence, or possibly even to leave the face intact either for personal or religious reasons imo. If so, that would be interesting because one girl was shot in the head the other in the neck.
"The next morning, April 27, 1973, a boy named Tony Iscaro took a short cut on his way to school. He discovered the girls' bodies in a grassy field about two kilometres from the diner.
Wilkinson pulls a yellowed crime scene photo out of a wrinkled folder. The victims are slumped almost on top of each other, in front of a bank of concrete squares and bricks.
Tedford was shot twice in the neck, he says. She was left face down with her arms at her sides. Stearne had been shot once in the back of the head. She fell on her back"
http://www.thestar.com/news/gta/2009/09/01/a_relentless_hunt_for_elusive_clues_in_1973_slaying.html
"
Several months later, a revolver was found on the side of the highway in southwestern Ontario. Police eventually linked the weapon to the Tedford and Stearne murders by analyzing the bullet riflings. It had been used in a Windsor robbery
Still, despite the dead ends, Toronto detectives haven't given up hope. In the last few months, Toronto's cold case squad has teamed up with their counterparts in the Ontario Provincial Police.
In 1972, two girls, 15 and 17, were shot and killed west of Tilbury, Ont., which is about a 45-minute drive east of Windsor. Each sustained a bullet wound to the head. "There are other connections, but it's still early. I can't give you any more details than that at this stage," said Det. Insp. Ian Maule, who heads the province's cold case unit.
Back in Toronto, Det. Reg Pitts is hoping to give the girls' family an update in the next few months.
"The thing is," said Pitts, who heads Toronto's cold case squad, "after a homicide, you're working against time. Time is the enemy.
But in a cold case investigation, time is your friend. And we're never going to quit looking for these two young girls' killer."