Sheesh. Only in California. Help yourself to the dead man’s personal property, toss all the guns on a tarp on the ground.
See, the guns and ammo – and anything else owned by the deceased – belong to his estate. Not The State.
Even if there are no heirs, you still have to go through probate. Or not – the deceased lived with a fiance apparently for many years. She could have simply taken possession of the collection so long as no other heir objected.
Even if the dead was an eccentric odd-ball, California has no legal precedent that I am aware of to simply go in and plunder. But here, they are.