Three men were injured in a shooting at a Willingboro Township residence on Saturday evening, authorities said. The incident happened in the first block of Buttercup Lane in the township’s Buckingham Park section, the Burlington County Prosecutor’s Office said Sunday. The street is about a block away from The Alternative School at Bookbinder. The shooting was reported to police around 8:15 p.m. The three wounded men were taken to Cooper University Medical Center in Camden, and all of them are expected to survive, the prosecutor’s office said. Police did not describe the severity of their injur…