This is for everyone, so be sure to spread the word if this isn't announced in public. You're all probably still wondering about the unsolved case, but Childe has informed us of the unfortunate truth: that night, while exploring the area, he slipped and fell, hitting his head in the process. He's not sure what happened then, but it sounds as though he drowned in the process...? Quite a tragic accident, if ironic considering his element. That's all.
Gideon