The Newday article about his death actually made mention of his community-minded street changes in the last few paragraphs: https://www.newsday.com/long-island/michael-ameri-nypd-inspector-found-dead-on-li-cops-say-q90719

You'll find a bunch more articles if you google his name, he had been a degree or two away from a corruption probe several months prior so that's always mentioned as a possible factor, though he himself was not a subject of any investigation. It was all fishy as fuck.