A New Haven gang member has been sentenced to 14 years in federal prison for his involvement in multiple shootings and other violent crimes. Jaivuan McKnight, also known as “Sav,” was a member of the 960 gang, a notorious street gang known for its involvement in drug trafficking, firearm possession, and acts of violence. McKnight, 25, was sentenced today by U.S. District Judge Kari A. Dooley in Bridgeport after pleading guilty to racketeering conspiracy charges. Prosecutors presented evidence linking McKnight to several shootings, including one that resulted in the death of a rival gang member…