You don't know that she killed her in the television show, but in the books, Courtney, Alison's twin sister, killed Ali. Mona is the first A, and Courtney is the second A, because Mona dies in the books, but A is someone different in the show. I know that A is different because I read on the ABCfamily website that A is different. So Jenna didn't kill Ali in the books or the TV show.
She didn't kill her!! Jenna was blinded!!
Yes, Ali killed Jenna.
no she doesn't kill anyone
No alison killed her im confused who killed jenna and why?! -.-
He feels bad about molesting Jenna
she doesnt she only blinds her
She doesn't. She lights her garage on fire while Jenna is in it and blinds her. She is still alive.
Jenna didn't kill Alison. Hello she's blind.! Ali killed Courtney her twin sister. Who took over her life.
jenna gets killed by billy ford and mona falls off a cliff trying to kill one of the girls.
since jenna is blind she couldn't see what was going on.ali came to her house and shoved her in a ditch,and well,she died.
Allison didn't kill her friends in Pretty Little Liars
Ali killed Jenna because Jenna knew about the Courtney and Ali thing...so that's why she killed her. And that's the exact same reason she killed Ian too.