Also at the 1:15 mark it looks like he tried to melee with the butt of his pistol after killing him. There have been rumors that if you want to use your knife in this game you will have to have a perk in order to do it. Hopefully the melee is a two hit kill if you don't have the perk.
Then right after that he knifed somebody, but before he did it the game showed he had a knife equipped as he was running up to the guy he knifed.
"Right now Von Miller is the best pass rusher in the world. He looks exactly like Derrick Thomas did in his heyday."
- Jon Gruden