Hey there, so Calvin, the guy who buys tools off you for 25-30? caps has gone missing on my game. I've spent the past 2 hours searching every room in the vault including *ahem* that other semi-secret place in the vault and I can't find him. I've slept in my bed in Sanctuary for 2 days and gone back and he still doesn't appear. This is a bummer because I have a ton of excess tools that would make very good money if I gave them to him.

I completed Vault 81 (the quest) by passing the speech check to get in. I also completed the quest where the boy is sick. Not sure what else is important to note. Help anyone?