I think it’s time to pull my copy of Through Gates of Splendor off the shelf and give it a re-read.
Here’s a brief video (10:00) that summarizes the events.
The title is Jim Elliot’s famous quote: “He is no fool who gives what he cannot keep to gain what he cannot lose.“
Justin Childers has more Jim Elliot quotes here.
It is possible that these men did more for the kingdom by dying than by living when one considers the untold numbers of young men and women went to the mission field after hearing the story of these four men. How many has God called to his kingdom as a result of their ministries?
Here is a video of an interview with one of the men who participated in the killing who later was brought to Christ.