Pretty curious where they got this "good video."
I'm kind of sympathetic to how hard it is to find this guy. Even today, it's not like there is great video of every square inch of property on every college campus, although I guess there should be security video somewhere of him getting up there.
Officials not releasing video of shooter, who appears to be college-aged

Rebecca Cohen
Mason said officials have good video of the shooter but are not releasing it at this time. Officials noted that the shooter appeared to be college-aged, but declined to give more details.
He said they are using technology to try to identify the individual. Mason said if that fails, officials will reach out to the public to help.
"But we are confident in our abilities right now, and we would like to move forward in a manner that keeps everyone safe and then moves this process appropriately," Mason said.