Everlasting hope

I have never been a bold witness to those around me who aren't Christians. Now, I am presented with the perfect opportunity to do so at my work. My boss (not my direct supervisor) has cancer and probably doesn't have long to live. He's not a Christian, and I need to share the gospel with him. I also want to present it to my coworkers as well, and as his posting on his website today talked about priorities and the high possibility of losing the fight against cancer, I have a means of letting him and my coworkers know about the importance of eternal life. I would appreciate your prayers.