I was kidnapped when I was ten the kidnapper has tried to sell me multiple times but I always act aggressive so that he won't sell me. Last night, I overheard him talking to someone who was planning to buy me. I can't let that happen, I think to myself, but then I after my kidnapper hangs up, I hear him say to his wife

"If we can't sell him to this person, we have to kill him we have and him for nine whole years now"

I get a look of panic, shock, and fear as I hear him say that(Gender?)