is there an easy way to know when the "le" means him as opposed to it?
In this intense, there is no confusion because verb "savoir" is not used for people.
"I know him" is "je le connais" (verb connaître).
Trying to unravel what the robot voice says, and having music in the background might not be the best combination. I wrote: 't'as peur, je le sais.'