Active shooter, short film with many nods to Columbine.

Has anyone ever seen this short film?
It has many nods to Columbine, and does a decent job at showing the chaos that ensues in an active shooter situation.
I get the feeling they based the father loosely off Eric's dad, as he essentially says the same dialogue that Wayne Harris said to the police in the 911 call.
His son also used to play sports like Eric did, although the journal with the love notes seems to be more of a nod to Dylan over Eric.

I saw this, I thought it was good. Did´nt really think of the connection to columbine but I guess you are right.