A 17-year-old Watsonville boy was stabbed in the chest yesterday (Sun) evening, and police are looking for the assailants. The victim was stabbed once in the upper right rips, during a fight with 3-men on the 1-hundred block of 2nd-street. The teenager was air lifted out of the county for medical treatment. The incident is being investigated as gang-motivated, and police are investigating if it was related to other violence in Watsonville over the weekend, including a shooting homicide on Saturday night, and a stabbing on Saturday morning.