Maurice Pritchett, Sr. Academy opened Friday to a huge, lively crowd. (All photos from Jarek Rutz/Delaware LIVE News) Hundreds of Wilmingtonians screamed the last name of a local legend in a “call and response” rhythm on the corner of East 7th and North Lombard streets Friday afternoon. Speakers screamed “Maur-ice” as the crowd howled “Pritch-ett”…