A woman close to Omar posted a YouTube video packed with degrading insults about wheelchair-bound Abdihakim Osman and pressed members of her Somali-American clan to go after him. . . . She went on to say Osman has a ‘big bell, small udder, pillar-like head’ and mocked his disability which was caused by contracting polio as a child in Somalia. ‘You Majeerteen men, we despise you,’ she added, talking to her clan members. ‘You are letting this ox seated on the ground harass us. ‘Why don’t you stop this crippled dog?’