A mystery lottery jackpot winner finally stepped forward with a crinkled Lotto 6/49 ticket worth $8.5 million, lottery officials said. Jack Schlacter, 50, of Montclair, claimed the jackpot from Wednesday's drawing, lottery spokesman John Schade said. Schlacter correctly picked all six numbers in the computerized drawing. Schlacter, who owns Allstate Auto Wrecking in Pomona, will receive annual after-tax checks of $342,400 for 20 years. Meanwhile, two Lotto winners from Saturday's drawing also claimed their prizes, Schade said. Bob Townes, 65, an antique shop owner from Cambria, and Dorothy Silvey, a San Anselmo housewife, each correctly picked the six numbers in the weekend drawing. They will each receive annual after-tax payments of $97,600 for 20 years.