This one is literally impossible to see... because the kill happens off-screen. The camera pans away just before the moment of the kill, but then the camera zooms out to reveal what happened.

The kill happens just outside of the lower left corner. Stephan (Ro-Maniac), with the white fin, red wing top, white wing bottom and blue fuse, is just about to complete a loop before he goes off-screen. You can see his red streamer is still attached and is in the shape of the loop he just completed. I (Juice), with the red top and purple bottom, barrel in on him high and from the right before I go off-screen.

Stephan comes back on-screen pointing straight up with no streamer. His streamer comes back on-screen floating way behind him. After doing a 180 degree turn, I come back on-screen at the bottom of the screen going left to right.