[Eroteme]

No, Brian Pagliano is the guy taking the 5th. This Hoteham dude is almost certainly Eric Hothem. Good read on him here:

http://freebeacon.com/politics/is-the-mysterious-eric-hoteham-actually-longtime-clinton-aide-eric-hothem/

[bronxville]

Thanks for the link - good read.

Also here with an embedded AP link - AP were the original investigators also ascertains the spelling of the name as you’ve already said:
http://www.bloombergview.com/articles/2015-03-04/clinton-s-e-mail-server-was-never-safe