"Find who did this," he posted on Saturday. "I'll donate $10K"

The ALS ice bucket challenge has for the most part done nothing but great things for a good cause – until a couple of teens from Bay Village High School near Cleveland, Ohio, used it to pull a horrible prank on a 14-year-old student with autism.

After asking the teen to take the challenge, instead of filling the bucket with water and ice, they filled it with urine, feces and spit – and recorded the whole thing on the victim’s phone, posting it to Instagram.

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The teen’s mother found the video, and alerted the school and police.

On Saturday, TV funnyman Drew Carey, 56, who was born and raised in Cleveland, brought the incident to national attention when he offered a $10,000 reward via Twitter to find the kids responsible for the sick joke.

“If the Bay Village PD wants to start a reward fund to find who did this, contact me. I’ll donate $10K,” he posted.

Bay Village school officials have said they will take disciplinary actions against the students behind the prank, and in a statement sent to students, parents and faculty, said: “It hurts us deeply to see such a wonderful effort twisted to deliberately cause someone pain. We are supporting our Bay Village Police Department as they vigilantly work to complete their investigation in this case.”

Some students held a vigil before the school’s Friday night football game in support of anti-bullying efforts.

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