@deatheguard there was contact between them earlier, but she didn't came close to him, if I remember right, It will be very intriguing to see from where his power came from, and Paul in dune has the ability to see the future so it won't be so far if he has some magical powers like that of The Voice. I keep forgetting this isn't The Expance.
Stupid theory I don't know if it's even close.
I think the dude is a thinking machine or at least his body has some robotic/AI technology integrated in.
How he kills them? he breaths near them wich transfer some kind of nano robots to there system and than he gives the order to those nano robots to self destruct or burn wich leads to him struggling to maintain the connection since he's brain can't handle all the data his machine part is transmitting and why they burn from the inside, I don't know hhhhhhh maybe I should write some story inspired by this hhhhh. What do u think?