LOS ANGELES  -- Los Angeles Mayor Antonio Villaraigosa and police Chief Charlie Beck say they hope someone can claim the $1 million reward offered for information leading to the capture of Christopher Dorner, the ex-cop and suspected quadruple killer who died after a mountain shootout this week.

But the mayor and chief said in a joint statement Thursday that more than 20 jurisdictions and entities are involved, and any decision on the reward will have to go through all of them.

It's not clear who if anyone would qualify for the award that police believed was the largest in local history.

Possible candidates include a couple who came upon Dorner at the cabin where he'd been hiding, and a man whose truck Dorner stole as he fled before the final firefight.