It's the video everyone is talking about: A Clark County School District Police officer pepper spraying a crowd of students Friday afternoon at Eldorado High School. The officer was trying to arrest an 8th grader for trespassing on high school property when his sister got involved. That's when students say the crowd gathered, heckling the officer, and students began recording everything on their cell phones.

This was the scene at a Las Vegas high school today.Story: http://on.ktnv.com/1QckGA9**WARNING: Video contains foul language** Posted by KTNV Channel 13 Action News on Friday, January 15, 2016

Action News showed the video on earlier newscasts and received a lot of feedback from people defending the officer.

CCSD trustee Kevin Child defends officer who pepper-sprayed Eldorado High School students. pic.twitter.com/Plugxt7T0Y — Michael Burton (@MikeBurtonKTNV) January 16, 2016

If you look closely, you can see that he is hit in the head with what appears to be a rock just before he pulls out the pepper spray. However, another video shot from a different angle does not show that rock, although it's not clear if the second video was taken at the same time as the first.

If not, that could indicate the officer sprayed the students before he was hit, or continued to do it afterwards.

School police made no mention of a rock in a statement released to Action News describing what happened.

Some students are still upset, since the suffered with burning eyes and throats for hours. "I have asthma and when he sprayed it, I started coughing and lost my voice. I only got it back 20 or 30 minutes ago," said freshman Eva Sedano.