Sentencing was postponed Thursday for a former Washingtonville High School student who threatened to shoot up his school.

Brendan Vaughn had previously pleaded guilty to making the terroristic threats.

According to the criminal complaint, Vaughn was planning an attack against fellow students. He later made troubling posts on social media and created a kill list back in 2018.

MORE: Mother of teen targeted in thwarted school shooting plot hopes for closure during sentencing 

Families in the courtroom Thursday were very emotional, nearly begging the judge to keep Vaughan in custody, and get him the mental help he needs. Vaughn became emotional Thursday when his sister begged the judge to give him mental health help -- his tears were seen turning into a bloody nose.

Both parties agreed to postpone the sentencing and allow mental health experts to be interviewed to get a better sense about what treatments Vaughan has already received, and how likely any other treatments would help him.

Vaughn has been diagnosed with an autism spectrum disorder, as well as an anti-social disorder.

His next court date has not yet been set.