Why, Kaitlyn, why?

It's the question Boston Police Officer Mike Keaney kept asking himself when he learned his niece, Kaitlyn Keaney, also a Boston officer, had killed herself:

... My brother-in-law, Kaitlyn's dad Jack, is a police officer at C-6 in South Boston. He was working this particular night and heard the 911 call given out over the air. He raced to his home along with several other officers and saw Kaitlyn lying there in her bed. He admitted to me later that night that all he could do was helplessly scream at her, "Why, Kaitlyn, why?" Several family members gathered across the street from the scene in sheer agony. None of us saw this coming, no signs of depression, nothing. The last time I saw her was on July 4 at my brother Joe's annual barbecue. We were shooting baskets with her younger cousins, same old Katie, funny, cheerful, with the brightest smile and most beautiful eyes I have ever seen in my life ...