I hate to say this, but I expected as much. I'm SO sorry for your friend's loss though...I too hope she has a necropsy done, ESPECIALLY IF she plans on getting another?
Because IF this was something contagious, she surely wouldn't want to go thru this again. If she doesn't do a necropsy but wants another reptile, honestly she should
wait a year & thoroughly disinfect, & disinfect again, and then again. OK? Poor little snake...:( And she might want to be talking to whoever she got that snake from?