Couldn't possibly forget either.
I was a student at the time, and last minute homebound for Europe. Got a last minute ticket with Pan Am routed through Heathrow arriving there on the 21st. It was a true shock and unreal to learn what happened to PA103 later on that day.
It was even scarier returning back to the states and to college right after new years. I think I could count no more than 50 to 75 pax on that 747. Crew extremely supportive.
May all those souls rest in peace, and may their families find peace too.