Reply #1: A young Christopher Walken played opposite Natalie Wood in her last film

[jotsy]

Brainstorm, 1983. I mention it because there's a scene at the end that might provide one take on that moment. The end of American Beauty may also steer you to an answer as well.

Unless another character is empathic in some way to act as a conduit to the dying, what you're attempting to illustrate may stretch the concept of temporary suspension of disbelief to the point where it may cost you more than you gain. Hard to be helpful without a couple more details, like is this set in a future where maybe we know more about the brain, and are these deaths occurring in the middle or the end of what sounds like a fascinating story.