Police Officer Dennis Oliver Simmonds

Police Officer Dennis Oliver Simmonds

Boston Police Department, Massachusetts

End of Watch Thursday, April 10, 2014

Dennis Oliver Simmonds

Police Officer Dennis Simmonds suffered a fatal brain aneurysm while working out at the Boston Police Academy gym at approximately 1:30 pm.

Officer Simmonds had suffered a head injury April 19th, 2013, when he was struck by shrapnel from an explosive devise that was detonated during a shootout with the Boston Marathon Bombers in Watertown, Massachusetts, the day after they murdered Police Officer Sean Collier of the Massachusetts Institute of Technology Police Department.

After he collapsed in the gym he was rushed to a local hospital where he passed away.

Officer Simmonds had served with the Boston Police Department for six years. He is survived by his parents.


  • Age 28
  • Tour 6 years
  • Badge Not available

Incident Details

  • Cause Duty related illness
  • Incident Date Friday, April 19, 2013
  • Weapon Explosives; Bomb
  • Offender Not available

Most Recent Reflection

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Rest In Peace Brother in Blue. Thank you and your family for your sacrifice and service.

Officer Mike Robinson (Ret)
Upland Police Dept. CA

April 18, 2018

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