Paul Walker

QUINCY — Chuck Scholz fondly remembers most of his time as Quincy’s mayor from 1993 to 2005. He doesn’t hesitate, however, when asked which day was his worst. Tuesday, Nov. 19, 1996. 5:02 p.m. Twenty-five years ago today. United Express Flight 5925, a Beechcraft 1900 twin turboprop plane, collided as it tried to land with…