No, they got her name off the computer they caught, which is my point. They found reason to investigate her involvement, not sue her and make her prove her innocence. I would hate to be responsible for every violation that came from a computer for which I'm a registered user.
Furthermore, I know teenagers who share accounts on all kinds of services to avoid paying multiple access fees or dodge a parent's restrictions, even though this usually violates the ToS. But violating the ToS isn't anything the RIAA can sue over, unless it's their ToS the kid violates.
Which is why I have a problem with the parent's statement that because she was 19 and has internet access, she is probably guilty. Whether or not she did it is beside the point. The cause they based their suit on wasn't specific enough to sue her. Had they sent a goon to the hospital to question her about it, I would not feel it was an exploitation of my tax dollars to make her do their job for them and figure out who downloaded music illegally.