Love triangle stabbing in StocktonSTOCKTON — A boy was stabbed by his girlfriend’s ex-boyfriend Friday night in central Stockton, authorities said.The victim was at his girlfriend’s house in the 1300 block of East Washington Street about 9:15 p.m. when there was a knock at the door, police said. When the victim answered the door, he was confronted by his girlfriend’s ex-boyfriend and the ex-boyfriend’s roommate, officer [...]