Thunder Bay Police are investigating the city's 4th murder of the year. They say the body of a 16 year old girl from Sachigo Lake was found in the bushes off the bike path behind Wentworth Cres. around 7:30 this morning. That's right behind Al Laird's house. He says it was at about that time he heard something chilling while he was in his back yard. He says he heard "some real loud screaming, a woman's voice" in the bush. He says that it lasted for about a minute or so and then there was silence. Police expect to release more details later today