I suspect you approach your birds differently that I do mine, but please accept my sympathies.
I run two or three batches of meat birds thru each year and maintain a small flock of layers. We get along fine, I enjoy the various "games" that emerge from their different personalities. As well as I get to "know" them, I've yet to give a chicken a name. That's not a knock on you for having done so. It's more my nature . . . insulation, if you will, against the day I may have to make a hard but necessary decision.
Of the chicks that make up the current laying ladies, one WW emerged with a twisted (not entirely crossed) beak. I kept an eye on her with the usual concerns of her being able to get her measure of feed and water to thrive. She surprised me. At 12 weeks, she was the biggest and most active of the lot. In retrospect, I can testify that her chickenly pecks pinched more than the others, and suspected that she may have attained her size and boldness from coming to the top of the pecking order for that very reason.
Not long after, however, I found her down. A thorough going over didn't come up with anything. With some assistance back to feed and water, she perked back up and seemed to be her regular self. Kept a sharper eye on her than usual, and she did well through the day. I found her down again the next morning, terribly pecked, and so far gone she wouldn't touch food or water.
I culled her.
Lessons? Maybe she could have been saved with earlier isolation and later re-introduction. Flip-side, as I could find no injury, before the pecking, goes to the suggestion that others have made that an irregular beak may be linked genetically to other weaknesses in the bird. Either way, it's all part of the reality of husbandry. Not always easy.
I hope all of this doesn't seem too awfully detached. I'm sorry for the loss of your friend.