We now know the store where the $1.13 billion Mega Millions jackpot was sold in New Jersey, but even its owners remain in the dark as to who holds the winning ticket for last night’s massive drawing. Richard Saker, president of family-owned company that operates 40 ShopRites in New Jersey, stood inside the ShopRite liquor store in Neptune Township as it buzzed with excitement Wednesday morning over the historic sale. “It’s unbelievably exciting,” Saker said, nothing the company plans to donate its $30,000 bonus for selling the ticket to charity. Full coverage of historic Mega Millions win N.J….