In this May 18, 2017 photo, Milwaukee prosecutor Jeremy Arn, left, talks with Fayez Shanaa, who owns a corner store on the city's north side. Arn, who is stationed with officers in Police District 5, told Shanaa last year to install a window so people could see if he needed help and use better lighting outside to improve safety. Shanaa followed his advice. (AP Photo/Ivan Moreno)