Sam's fingers are clutched in his shirt, smeared with blood, and Nate knows that's an image that's going to stick around far longer than he wants it to. He hadn't thought there was anything worse than watching Sam fall from that roof, but this is worse, this is infinitely worse.

"Stay with me," he begs, feeling like he's thirteen again and begging Sam to stay at the orphanage. He used to hate it when he left after a visit, used to try anything to make him stay.

Dimly he registers that someone else has arrived and is kneeling next to him, and he casts a cursory glance to the side to see that it's Beth. She asks what's going on and Nate almost laughs hysterically, but he holds it in check. What's wrong is his brother is dying in his arms all over again. What's wrong is that he can't save him. Again.

"It's my brother," Nate tells her, pressing his hand more firmly on the wound and shouting at Sam to keep his eyes open. "Call an ambulance!"