(From MC's perspective)
When Garry and Peter lost their breath, then I focussed my attention on Bob. Before ending him, I hope to get some crucial information from his mouth.
"Do you want to live?" I asked.
Bob Stokes raised his head in confusion. He was never expecting a survival option in this situation. But still, he wants to grab any opportunity to save his life. So he looked at Kevin(Vincent) and asked back, "What do you want?"
Bob knows it's not easy to escape alive from here. From Kevin's actions, he came to realise that the other person wants something. So only after fulfilling his request, he may end up saving his own life.
On the other hand, my eyebrows eased a little bit knowing that Bob is ready to cooperate.
"Okay, I'll ask a few questions. If you give me a satisfying answer, you can leave from here," I said.
"If not, you will end up worsen than your friends," I added further.