Whip's Suicide to Crossed GT???

when i first saw malcolm did it, i’m like “WOW!!WTF!!HOW COULD THAT POSSIBLE?”. the GT appears from nowhere that i just can’t figure out how.
does anybody have a tut or can explain it?

it appears to be a suicide to a cross armed brent stole…

The triangle would need to have some elements of brent stole. Except the loop that would form the GT, is the suicide loop.

that means it include bring my hand forward?

I should assume. i have yet to attempt, because everytime im about to it slips my mind xD

cool trick