News12 New York
N12 Originals
Numbers & Links
Local
Crime
Weather
Politics
Taxing Long Island
Stony Brook Medicine

Trial begins for Rockland teaching assistant who dunked disabled, nonverbal childrens' heads in pool

Catherine Rios's colleagues said to Clarkstown Police Rios yelled in the face of a seven-year-old with autism to 'be quiet,' before pushing his head underwater with both her hands. They said Rios then did the same thing to a six-year-old with autism who is prone to seizures.

Ben Nandy

Sep 16, 2025, 6:02 PM

Updated

Share:

More Stories

A special education teaching assistant is on trial in Rockland County, facing felony charges for pushing two disabled children's heads under water in a therapeutic pool at their school.

Catherine Rios, 54, is fighting two felony counts of endangering the welfare of a physically disabled person and two misdemeanor counts of endangering the welfare of a child.

She opted for a bench trial, which means Rockland County Judge Kevin Russo, not a jury, will eventually decide whether she is guilty or not guilty.

The incident in question was on Jan. 21 in the pool at the Jesse Kaplan School in West Nyack.

Rios's colleagues said to Clarkstown police Rios yelled in the face of a 7-year-old with autism to "be quiet" before pushing his head under water with both her hands.

They said Rios then did the same thing to a 6-year-old with autism who is prone to seizures.

Both children are nonverbal.

Rockland Executive Assistant District Attorney Kristin Tirino said in her opening statement Rios escalated the situation, which is counter to what staff is trained to do.

Tirino said the 7-year-old was "gasping for air when he got up above the water," and that "nothing could calm him down."

The students' teacher testified staff is trained not to yell because students may not understand it, and to stay 'hands-off' unless the student is posing a danger to himself or other students.

Defense attorney Dan Bertolino pointed out that while training is provided, the Jesse Kaplan School does not have a specific protocol for controlling students in the pool, and said the work environment is difficult.

"Everyday, one or more kids are biting, kicking, screaming, hitting teachers," Bertolino said in his opening statement. "Kids are out of control frequently, everyday."

The first student Rios dunked was spitting water, Bertolino said.

The description of life inside the school triggered some emotion.

Both the alleged victims and Rios each had about 15 friends and family in the courtroom for support on opposite sides of the center aisle.

As Bertolino spoke about the work environment, one person in among the alleged victims' supporters said "I'm about to lose it."

Bertolino estimates that in her eight years as a teaching assistant at the pool, Rios has dunked kids' heads 1,500 times.

He said no one had complained until January.

As Rios's friends and family left the courthouse for the lunch break Tuesday, Rios and her attorney declined comment as her relatives shielded to avoid her being photographed.

Friends and family of the alleged victims also declined comment, except for a quick thought from a woman who identified herself as an aunt of one of the students.

"I'm not feeling good about the fact that this woman tried to drown my nephew," she said.

The defense plans to call character witnesses and Rios herself to testify.

Prosecution witnesses include teacher's aides who saw the dunking and the mothers of both students.

The trial will continue Friday.

A spokesperson for the Rockland County District Attorney's Office said the DA expects proceedings to wrap up the same day, and for Judge Russo to announce his verdict shortly afterwards.

The sentencing, if applicable, would be scheduled for a later date.

Each of the two felony charges are punishable by up to four years in prison and a fine.

More Stories

Top Stories

01:44
F P2 PM 1(141)

Weekend starts windier and chillier with a passing shower on Long Island

01:49
Extinguisher Explosion MS 052926_2026-05-29-17-09-15

Snow in May? No, just fire extinguishers accidentally set off at a gas station

01:13
5pmbol2026baldwinstabbing_2026-05-29-17-05-09

6 teens charged in Baldwin stabbing of 15-year-old boy

01:52
li5pmbol2026logan250museums_2026-05-29-17-22-15

North Fork launches Revolutionary War Trail ahead of America’s 250th anniversary

01:53
Tick Issue MS 052926_2026-05-29-17-09-59

Parents challenge school district’s claims about tick sightings at Miller Place school

01:37
LILIRRJONALERT52926_2026-05-29-12-31-36

LIRR delays and cancellations persist after service restored to Penn Station following Amtrak-related fire

03:05
LIDRNACHMAN52926_2026-05-29-07-08-46

Tips to stay safe from ticks this summer

02:24
LIFOODTRUCK52926_2026-05-29-07-08-50

Food Truck Friday: Iron Chef Catering on wheels

00:16
Stabbing

Six teens face gang assault, stabbing charges for assaulting teen, police say

APnewstn

Judge temporarily blocks payouts from Trump’s $1.8B ‘anti-weaponization’ settlement fund

00:24
LIWOODMEREAXARREST529_2026-05-29-05-41-35

Driver arrested two months after fatal Woodmere crash

01:10
EASTENDSPLISHSPLASH52926_2026-05-29-08-59-50

Cooling off from the summer heat with some fun at Splish Splash water park

00:29
LIBAYARD52926_2026-05-29-06-24-34

A plant sale is happening this weekend at Bayard Cutting

00:29
hit and run arrest

Man arrested for hit-and-run, drug possession in Suffolk

00:37
LIMCLEAN529_2026-05-29-05-59-52

Mets pitcher Nolan McLean teaches little leaguers at Nassau clinic

01:51
LILogan5pmStudentDeadKK_2026-05-28-17-37-41

Sag Harbor community mourns 6th grader who drowned in rafting accident on school trip

01:53
5-28-26 Bayville Attack

2 teens charged for menacing and attacking drivers in Bayville

01:47
LI 5PM THU_Data Center Concerns_ajc_2026-05-28-17-05-38

Town supervisor says no data centers are coming to Brookhaven

01:37
MP Ticks MS 052826_2026-05-28-17-09-09

Miller Place parents raise concerns over ticks at schools amid spike in tick activity on LI

00:20
Screenshot 2026-05-28 115804

Deer Park woman that used dynamite to blow off her boyfriend's hand sentenced to 18 years in prison

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