Jem Aswad Senior Music EditorEven for obsessive Rolling Stones fans, the story of founding guitarist Brian Jones’ death nearly 51 years ago has been so clouded with misinformation, controversy and battling agendas that at a certain point one just gives up wondering. An asthmatic with a long history of substance abuse, he drowned in the pool of his lovely home on July 3, 1969, at the age of 27 — just weeks after being ejected from the Stones.