Emmet

 was a member of the search party that was searching for Cheryl. Emmet cut his leg on a piece of mutant metal architecture, and died of a rust-related disease.

Grave Quote
R.I.P. Emmet Poor kid left Canterbury so fresh, I didn't want him along, but he really came into his own these past two weeks. He'd died in the night. No point bothering with these pricks at the Citadel now. We head into the city tomorrow

Appearances
is only mentioned in Fallout 3.