GRANITE CITY, Ill. - Jason Robertson, whose battle to attend school as a boy with AIDS (news - web sites) in the 1980s helped other children with the virus overcome its stigma, has died. He was 23. Robertson died this past Thursday in his mother's home in Granite City. "Until the end, he was more concerned for our feelings than for himself," said Tammie Robertson. "He told me, 'Mom, I'm sorry I made you cry so many times and that I was such a burden.' ... But he was never a burden." Robertson was diagnosed with the virus that causes...