News12 New York
Where to Watch
Download the App
Local News
Crime
Weather
beWell
The East End
Crime Files

Jury reaches not guilty murder verdict in fatal shooting of NYPD detective, guilty on other charges

Guy Rivera was on trial for the killing of NYPD Detective Jonathan Diller.

Cecilia Dowd

and

Karina Kovac

Apr 1, 2026, 5:58 PM

Updated

Share:

More Stories

UPDATE: A jury has reached a not guilty verdict on the top count in the trial of a man accused of killing an NYPD detective. The jury did find Guy Rivera guilty on other charges, including aggravated manslaughter.

This is a developing story. Stay with News 12 for updates.

Original story below:

Jurors are continuing deliberations in the trial of a man accused of killing an NYPD detective, despite sending a note that they'd come to a verdict — a verdict read aloud by the foreperson.

The foreperson said the jury found 36-year-old Guy Rivera not guilty of murder in the first degree for the killing of NYPD Detective Jonathan Diller, but guilty of aggravated manslaughter, attempted murder and two counts of criminal possession of a weapon.

After the jury announced its decisions, each juror was individually asked to confirm the verdict. During that process, juror No. 5 responded, “No," to the surprise of a packed courtroom.

The judge spoke to the attorneys, then sent the jurors back to deliberate.

Shortly after, the jury sent a note asking how many days they'd be kept if they didn't come to a unanimous verdict on Wednesday.

The jury sent two notes to the judge during the first deliberation. The first was a request to watch the prosecution's 18-minute-long compilation video of the moments before, during and after Diller was shot. The second note asked for legal specifics pertaining to some of the charges.

Diller, of Massapequa Park, Long Island, was shot and killed in the line of duty two years ago in Queens. He leaves behind a wife and a young son.

During summations, prosecutor John Kosinski told jurors that Guy Rivera "chose the deadliest of choices" and said his choices were "intentional," while defense attorney Jamal Johnson said, "there’s no evidence that Mr. Rivera set out to kill an NYPD police officer."

More Stories

Top Stories

00:45
Rivera Verdict MS 040126_2026-04-01-17-02-47

Jury reaches not guilty murder verdict in fatal shooting of NYPD detective, guilty on other charges

02:21
F P1 PM 1(135)

Scattered rain this evening on Long Island; colder and damp weather Thursday

01:30
5PMJeremycatthefts_2026-04-01-19-26-26

Two more suspects arrested in Suffolk catalytic converter theft ring

01:46
LI5LoganTickBites_2026-04-01-18-15-34

Doctors warn about potential life-threatening allergy from tick bites as the season ramps up

AP26091821905497

Artemis II astronauts bound for moon after rocketing away on NASA's first lunar voyage in decades

Ruben Guanipa Ramirez

Man charged with attempted murder after violent Gilgo Beach assault

02:29
AP22181000472056

JetBlue raises checked bag fees as fuel prices surge

00:27
LIinwoodman41_2026-04-01-12-08-48

Inwood man pleads guilty to 2025 murder of 2-month-old daughter

00:37
LITEACHERSUIT401_2026-04-01-05-16-21

Former Westhampton Beach teacher suing district, claiming wrongful termination

01:16
331taxinglongisland_2026-03-31-07-18-33

Owning a pet may soon give you a break on your taxes

02:22
prim

Top 5 Plants for Easter & Passover (and How to Keep Them Alive)

01:44
e9587653-d8aa-4dc5-a125-c620c545bc03

What's Cooking: Grilled lamb chops from Uncle Giuseppe's Marketplace

01:48
Plume Update MS 040126_2026-04-01-17-21-00

Navy launches Phase II Groundwater Treatment Plant in Bethpage

01:24
RTLIStJamesWeaponsArrestVO5pm_2026-03-31-17-07-17

St. James man accused of selling 12 illegal guns to undercover officer

00:24
KITTENS

Smithtown Animal Control helps save kittens after mother dies

00:47
LISHARKTANK401_2026-04-01-05-19-43

‘Shark Tank Showdown’ event raises money for kids, adults with disabilities

00:48
Fire Saviors MS 033126_2026-03-31-17-06-02

Ninth grader and mother save neighbor from house fire before school

01:29
Diller Closings MS 033126_2026-03-31-17-03-43

Jury in the trial of Guy Rivera expected to begin deliberations Wednesday

01:47
RTLIEasterChocolatePricesJSkiba10pm_2026-03-31-22-31-52

Local chocolate shops deal with high chocolate costs for Easter and Passover celebrations

00:41
li5pmbollogancrossingguard_2026-03-31-17-10-57

Queens man facing upgraded charges in connection with death of crossing guard in Merrick

App StoreGoogle Play Store

info

Newsletter

Send Photos/Videos

Contact

About Us

News Team

News 12 New York

follow us

Twitter

Facebook

Instagram

more resources

Optimum Corporate

Optimum Service

Advertise on News 12

Careers

Content Removal Policy

© 2026 N12N, LLC

Privacy Policy

Terms of Service

Ad Choices