Bascially the title and subject, my campanion Boone, killed a Fiend on that drugrunner quest either by accident or on purpose so now I have no idea how to get into the Motor Runner place to continue the quest.

bump.

Reload I guess

Reload, at this point with the abundance of bugs/glitches/whatever everyone should be saving in sixtuplet.

And don't bring Boone along on missions where you're trying NOT to kill things.

That man is the angel of death.

True for any NPC on critical missions.
It is too easy to blow away a friendly with friendly fire if they are "crossing the line of fire", or moving into the line of fire from you or your buddy.

Yeah I'd reload and leave boone behind.