If so, that fits a particular line. Was not Lorch somebody Arya wanted to get revenge on in the first place i.e. somebody she was whispering in her sleep?
Yes, Lorch was killed by A Man. I watched it and I'm not exactly sure how that was accomplished. Lorch was the guy who fucked up on sending one of Tywin's messages because he can't read.
non-spoilerish info
Spoiler:
(A Man's name is Jaqen, btw.)
I'm not sure on the names Arya recited in her prayers, for sure it was Cersei, Joffrey, the Hound, and some others. It would make sense for Arya to want to kill Lorch but she had quite a list going.