That's a horrible story and I'm sorry it happened. All you can do is what you did and do your best to recover the animals.

For the future, all the tracking, time, frustration is just not worth it just to shoot an animal. Take your time and only shoot when you have a good double lung opportunity at a range where you know you can score. I'm new to bowhunting and have shot 2 this year already. Both were excellent lung shots and the deer still ran 1-200 yards in both cases. A bad shot and the deer goes who knows how far. I'd rather pass on an iffy shot and wait until I get an opportunity that I know I can execute. Good luck.