Members of the Chicago Police Department SWAT team patrol the Main Quadrangles (Quad) on the Hyde Park Campus of the University of Chicago on November 30, 2015 in Chicago, Illinois. View Full Caption Getty Images/Scott Olson

CHICAGO — A Chicago college student who allegedly threatened to shoot 16 people at the University of Chicago was arrested and charged with transmitting a threat in interstate commerce Monday.

Jabari R. Dean, 21, allegedly posted a comment online saying he would "execute ... 16 white male students or staff, which is the same number of time (sic) Mcdonald (sic) was killed. I then will die killing any number of white policemen that I can in the process. This is not a joke."

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The comment was referencing the shooting death of Laquan McDonald, who was shot 16 times by Chicago Police Officer Jason Van Dyke.

During a federal hearing Monday, Dean's family said it was a "stupid, silly, ignorant" thing to do, and prosecutors admitted he did not have the means to commit such a heinous crime.

The criminal complaint against Dean (read it below) says he told arresting officers he took down the comment shortly after posting it, but it had apparently been reported to the authorities already.

Dean was set to appear in court Monday afternoon.

Read the complaint here:

Jabari Dean Criminal Complaint