Opera and concert producer Mark Richter has died, according to Alamo City Opera music director Kristin Roach. Music director Roach announced the death of the 51-year-old who was currently serving as the artistic director of the Alamo City Opera.  Richter died on April 28, 2019, at Metropolitan Methodist Hospital, where he was hospitalized for about 10 days. Richter grew up on the {…}