Xander heard about the situation through the network and decided to stop by. Sure, he felt horrible for not responding to L's request for help, but he wasn't above the law and didn't want to do something he might regret by saving the other man. For now, he hoped that he could make a few amends by visiting and bringing a gift.

With his free hand, he knocks on the door before speaking, "...L? It's Xander. Can I come in?"