Police in upstate New York arrested 12 people linked to the gang “Dipset,” named after rap group The Diplomats hit song “Dipset Anthem.”The gang, which is comprised of 40-50 teenagers, is suspected in as many as 12 slayings in the Rochester, New York area.In recent months, police infiltrated the group, which operated in a neighborhood with a flourishing trade.A dozen suspects were charged with assorted drug, assault and weapons charges.