The run-down New York Avenue Playground is an open wound for the close-knit community that surrounds it, which is grieving from the loss of one of its own this summer. In late August, 21-year-old Dominic Dixon was gunned down across the street from the park. Now, friends, family and neighbors have banded together, channeling their grief to form the Better Neighborhood Civic Association (BNCA). The 15-member group was established in late September at the urging of Dixon’s aunt. Their first order of business is to clean up the playground.