Old Town Plan is on....now about those homeless folks

Old Town will eventually see more redevelopment and we should be adamant about ensuring it's not just gentrification....which lately it seems to be. But we still have a problem with an unknown homeless population. There was another heinous crime in Maritime Heritage Park, which is avoided by all but the hardiest folks in the summertime, where a woman was raped and the loser who did it lives/lived under the Roeder Ave. bridge right at the end of the B St Wayside I've been working on since last year. I was actually down there under that bridge 3 weeks ago. Regardless, I've cut down all the brush and cleaned up our side of the creek so the open drinking/trashing/camping is gone but we will continue to have a problem with a certain group of people unless we get on the ball. Any ideas?