"You start a conversation you can't even finish it
You're talkin' a lot, but you're not sayin' anything
When I have nothing to say, my lips are sealed
Say something once, why say it again?"
- David Byrne
Yeah, Jarrett had a receiver running at him WITH THE BALL. Jarrett was trying to deliver a blow and separate the receiver from the ball. LT had already released the ball and was in a completely defenseless position. Zummult launched himself upwards at LT's chin. It is the definition of targeting.
If that dude keeps tackling that way in the NFL, he'll probably end up paralyzed or retiring early with a neck injury. I don't wish that on anyone, so I hope an NFL coach teaches him the right way to tackle.