A novelização do filme indica que os líbios não morreram. Eles ficaram presos dentro do quiosque (no acidente) e foram presos e levados para a cadeia.
Losing control of their vehicle, the terrorist van driver was forced to swerve into a Fox Photo stand on the edge of the parking lot. The vehicle fell over and landed doorside down, trapping the terrorists inside. In the distance a police siren wailed.
... [a few minutes later]
Marty smiled and shook his head. “What a hypocrite,” he said. “After all that lecturing about screwing up the spacetime continuum…”
“Yeah, well, I figured what the hell…”
Nearby, the police had poured out of their cars and were busily rounding up the terrorists.