A 21-year-old man was arrested Monday, accused of threatening to kill students and staff at the University of Chicago in an apparent attempt to avenge the death of Laquan McDonald, authorities said.

Jabari Dean, 21 was arrested without incident. He is expected to appear in court later in the day.

According to a criminal complaint, Dean posted a threat on social media over the Thanksgiving weekend.

"This is my only warning. At 10 a.m. on Monday mourning (sic) I am going to the campus quad of the University of Chicago. I will be armed with a M-4 Carbine and 2 Desert Eagles all fully loaded. I will execute aproximately (sic) 16 white male students and 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. I am to do my part to rid the world of the white devils. I expect you to do the same," the post read.

"Mcdonald" appears to refer to Laquan McDonald, 17, who was shot 16 times and killed last year by Officer Jason Van Dyke. A judge Monday set a $1.5 million bond for the officer, who has been charged with first-degree murder. Van Dyke posted bond later in the day, authorities said.

The shooting occurred in October 2014, but dashcam video of the incident was recently released, sparking outrage and triggering protests.