He exemplified the NYPD motto, “Fidelis Ad Mortem” or “Faithful Unto Death.” Detective Lou Alvarez has lost his battle with 9/11-related cancer. An inspiration, a warrior, a friend—we will carry his sword. https://t.co/utRphj7owx

— Chief Dermot F. Shea (@NYPDDetectives) June 29, 2019