Transcript indicates to me he is not a native English speaker. Asian features. Likely Chinese National IMHO.
Makes me go Hmmmmmmmm.
“I am (1) member of Black Lives Matter and I want to talk with Mr. Trump before the election. I don’t want to die. If someone (2a) will try to pull this rope… I will jump and die. I have a knife. If someone (2b) will try to pull [the rope] I will cut it and probably die — but I don’t want to die.”
1) “a” missing
2) Non English phraseology