Skip to Content
Streetsblog New York City home
Streetsblog New York City home
Log In
Carnage

SI Driver Charged With Manslaughter for Killing Cyclist With Boat Trailer

A motorist was charged with manslaughter for the death of a Staten Island cyclist who was struck by a boat trailer that detached from a truck.

Alexa Cioffi. Photo via SI Advance
Alexa Cioffi. Photo via Staten Island Advance
Alexa Cioffi. Photo via SI Advance

Alexa Cioffi and her friend Briana Emanuele were riding on Hylan Boulevard at Redgrave Avenue on the afternoon of September 14, 2015, when the driver of an SUV, who was towing a boat, attempted to pass them on their left.

The trailer carrying the boat became unhitched from the truck and struck both victims. Emanuele, then 22, was injured, and Cioffi, who was 21, was killed.

Last month, District Attorney Michael McMahon charged Michael Khmil with manslaughter, homicide, misdemeanor assault, and reckless endangerment, according to court records.

From the Staten Island Advance:

According to the indictment, Khmil's SUV was pulling a boat trailer with a maximum hauling capacity of 3,000 pounds, yet the boat weighed in excess of 4,000 pounds.

Khmil failed to secure the trailer to his SUV with chains and also failed to install a braking system on the trailer as prescribed by warning labels affixed to the trailer, contends the indictment.

As a result, the trailer detached from Khmil's SUV and struck Cioffi and Emanuele while traveling at a speed exceeding 20 miles per hour, the indictment alleges.

Manslaughter, the top charge against Khmil, is a class C felony that carries penalties ranging from probation to 15 years in prison.

Khmil's next scheduled court date is set for next week.

Stay in touch

Sign up for our free newsletter

More from Streetsblog New York City

Memo to Mamdani: Data Shows Massive Jump in Ridership on Bedford Avenue’s Embattled Bike Lane 

Hardened bike infrastructure increases the number of cyclists on the road — and here are the numbers to prove it.

January 15, 2026

Mamdani Must Reverse Adams Putting Cars on Park Roads: Advocates

It's time to undo Adams's car-first maneuvers, parks advocates said.

January 15, 2026

City Playing Catch-Up Amid E-Micromobility Surge on City Streets, Coalition Says

Local micromobility start-ups want Mayor Mamdani to take their industry seriously and make it easier to ride an e-bike in NYC.

January 15, 2026

Thursday’s Headlines: Affordability for Whom Edition

The honeymoon is definitely over, as you can see by the resetting of our bespoke Mamdani-O-Meter back to zero. Plus other news.

January 15, 2026

Gov. Hochul’s Uber-Backed Car Insurance ‘Reforms’ Threaten Payouts To Crash Victims

Hochul wants to limit payouts to crash victims under the guise of "affordability" and bogus claims about "staged crashes."

January 14, 2026

Cyclist Badly Injured By Truck Driver at Busy Midtown Corner

The victim may have lost her leg, one witness said.

See all posts