I: Wake Me Up

Rachael has finally been released from rehab, and is willing to start her life over and do some good in her life.

Except she meets Patrick Stump.

He seems to have switched personalities, but always denies it, but gives no explanation on why this occurs.

Long story short, Rachael falls head over heels for Patrick, but he soon makes a drastic mistake; which lands him in jail.

But the question is:

Was it actually him who did it?