 Shot Tower Capital analyzed the investment and concluded that the Estate's investment averaged a return in excess of 30 percent annually from its inception in 1985 to the 2016 sale.In the Michael Jackson probate case, Branca produced Jackson's final will and testament, which designated Branca as executor.The Jackson family filed a preemptive probate action in the Los Angeles Superior Court, based on the allegation that Jackson died "intestate," without a valid will.