<p>It was 25 years ago Friday that Philadelphia police officer Daniel Faulkner was gunned down in Center City by Mumia Abu Jamal. Faulkner’s widow will mark the anniversary by honoring District Attorney Lynn Abraham at the Union League, while Abu Jamal and his supporters continue to press for the death row inmate's release. Here is a look back at the events on December 8th, 1981.</p>