Brian Mulkeen was a Fordham grad and worked at Merrill Lynch till he quit his job and joined the NYPD. Apparently Mulkeen was killed by "friendly fire" while wrestling with an armed suspect.
There's a nice 1 minute video on twitter. I was mostly just sad and dry eyed till "Country Roads" kicked in. Because he's not just a cop; he's a person. RIP, Brian Mulkeen.