Oh, good! So, you have proof that it really WAS "suicide"? Please let me know your proof, because I, and many other people, are wondering...
But he told several neighbors "this is it" and "this is the day". During the two-hour standoff with the marshals, he thanked the news reporter he was talking to over the phone 'for everything', told him 'I can't tell you what's going to happen . . . but it ain't pretty' and told him to get his van away from the house. Then the place went up.
No proof, but that's the way to bet.