Two candidates for the 10th Suffolk District state representative race will be participating in public forum that can be seen in-person on on Facebook on March 23. The slate of candidates has been in flux in recent weeks for this special election due to current state Rep. Ed Coppinger leaving for another job. There are three candidates: Jamaica Plain resident Celia Segel, Roslindale resident Robert Orthman, and West Roxbury resident Bill MacGregor. MacGregor has declined to attend the forum. All three are Democrats, so they would face off in a May 2 Democratic primary.