hello dear questioner from..uh.. 2 months ago ": ] His name is Leon and he's not exactly dead, just in a deep-deep sleep mode due to his electronics melted by Shep's mistake. Since the incident squad carries his body around trying to protect and maintain it until there's a possibility to repair him. Scrappers and mechanics they met on the way weren't trustworthy enough, so Leon stays trapped in his little personal limbo when they settle in creating their personal outpost.
The part of the building where his room is becomes something similar to a robot hospice haha.

In life he looks ~like this. Almost always in his ornamented bright scarf, feeling more safe and comfortable covered with it. Probably still wrapped in it while laying unconsious.