In the world of trial lawyers, John D. Cooney is a man who doesn’t need much of an introduction. But that’s exactly what he’ll get tonight when he’s installed as the Illinois Trial Lawyers Association’s 61st president at the group’s annual convention in Oak Brook. A partner at Cooney and Conway who has been representing plaintiffs since the mid-1980s, the 60-year-old Oak Park native has helped win hundreds of millions for clients over the years. He chairs a national committee …