Man stabbed, wounded in Riverdale Park A 45-year-old man was stabbed and seriously wounded in the Riverdale Park area of Prince George's County Tuesday afternoon, authorities said. The incident occurred just before noon in the 6100 block of 44th Avenue - a residential area of single-family homes near the intersection of Route 1 and East West Highway, said Capt. Patrick Timmons of the Riverdale Park Police Department. Timmons said the man was taken to a nearby hospital, where he was still being treated about 3 p.m. Tuesday. It remains unclear what sparked the stabbing, and Timmons said investigators were interviewing witnesses and searching for suspects.