--The DA's office has released a computerized sketch of the man who has been assaulting people along the Esplanade and in South Boston. They want to talk to the following people: --A lone male who was present near one of the Esplanade footbridges at about 11:15 on the night of June 16, 2007. That individual saw the victim and the assailant. --A pair of bicyclists wearing helmets and cycling gear who were walking their bikes......