Roll of Honor
Incident
Police Officer David Greer was struck by a drunk driver and killed while talking with a motorist he had pulled over on the Long Island Expressway in Plainview, New York at 10:30 a.m. The 23-year-old driver dragged him more than 150 feet before fleeing and also hit the car Officer Greer had pulled over, injuring a registered nurse who comforted Officer Greer as he died. The driver of the vehicle was located with the help of CB radio users who were in the area. The subject was charged with hit and run, manslaughter, vehicular homicide, and DWI. He was released after posting a $5,000 bond. He pleaded guilty to criminally negligent homicide and was sentenced to community service and five years of probation. Officer Greer was posthumously awarded the Purple Heart. He had been with the Nassau County Police Department for 13 years.
Survivors
He was survived by his wife, two sons, and two daughters.
In Our Keeping
- Permanent identifier
BO-US-NY-A9621174- Stewardship
- Maintained by NeuraWeb Global Inc.
- Added to badge.nw
- April 2, 2026
- Last updated
- July 23, 2026
Honored here by 1 sentinel - 1 tribute.
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Tributes
I never knew you. I am standing here anyway.
Police Officer Greer gave the Nassau County Police Department 13 years.
Thank you for your service to the Mineola community. Gone but never to be forgotten.
Rest easy, Police Officer Greer.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Police Officer Daniel J. Greer is one of 17,623 officers killed feloniously — deliberately targeted and murdered in the line of duty across the full record of this memorial — 54.2% of all 32,508 officers honored here.
In NY, 754 of 2,147 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 35.1% of this state's fallen. That is 19.1 percentage points below the national rate of 54.2%.
At Nassau County Police Department, 12 of 51 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 23.5% of this agency's fallen.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. Daniel J. Greer's cause is highlighted.
How Daniel J. Greer Compares
Offender Outcome
Community service and probation
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. Daniel J. Greer is highlighted in Dec.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. Daniel J. Greer was killed by automobile; alcohol involved.
Incident Location
Others Who Wore This Badge
50 officers from Nassau County Police Department are honored on badge.nw. Showing the 16 most recent.
