Four years ago this week, an extraordinary young woman I had come to know was brutally murdered. Stabbed to death in her own home. By a man she and her husband had befriended and helped.

Four years on, I still struggle with the monstrous evil here.

We know that human beings do cruel, senseless, horrible things to each other. We see it in Syria, in terrorist attacks and in random violence in our own country.

We don’t expect it down the street. To people we know. And, until it happens, you don’t realize how much damage is done to families and friends.

Today, a foundation named for Jamie Kirk Hahn is doing good work. I know extraordinary young people who’ve been inspired by her life and her example.

Jamie was a political consultant. She was that most valuable asset, a fundraiser. She had built a good business. Helped good candidates and causes. She was exploring how she could help more nonprofits and charities.

Four years on, I have more awareness of the goodness and greatness that lies within us.

But I also have more awareness of the terrible evil that lies within some people. And the awful suffering they cause.

Outside, the rain keeps coming down. Like a flood of tears.