The ex-wife of the octogenarian charged with shooting Ralph Yarl said he was prone to violence during their troubled 14-year marriage – and that it “doesn’t surprise” her that he pulled a gun on the teenage boy when the child mistakenly showed up at his address. Mary Clayton, 81, who was married to Andrew Lester when she was young, has not spoken to him in decades and didn’t even recognize him when he appeared in the news for allegedly shooting Yarl, who had shown up at his address instead of one a block over to pick up his siblings, The...