Watertown Police Department on Instagram: "Our runner spotlight for the Watertown Police Finish Strong 5K is our very own, Detective Joseph Reynolds! Det. Reynolds was hired by Watertown PD in 2006, where he served as a night patrol officer. Det. Reynolds was working the overnight shift on April 19th, 2013, where he was the first officer to encounter the Boston Marathon suspects. Det. Reynolds engaged in an 8-minute firefight with the suspects resulting in the death of one suspect, and the appre