GRASSE, France, Nov. 7 (UPI) -- A skull found inscribed "death to pedophiles" among bones from at least four people has launched a murder investigation at Cap d 'Antibes, France, police said.
The bones were discovered on the French Riviera sea bed, about six meters (19 feet) below the surface, by divers, and have been in the water for at least a decade, investigators said.
DNA tests on one, from an upper arm, revealed it belonged to Stephane Hirson, 17, of Paris, who disappeared in 1994. The others, including a male's thigh bone, a female's upper arm bone, a skull and part of a jaw, remain unidentified, the British newspaper The Guardian reported Thursday.
Detectives discovered the faded inscription "death to pedophiles" on the skull, which investigators say belonged to a male under the age of 50.
"We are confronted with a series of enigmas. There are a thousand questions in this case. Why, for example, a single bone for each individual and not other parts of the skeleton?" said Georges Gutierrez, Grasse, France, public prosecutor Wednesday, as he announced the opening of the inquiry.