If the teacher truly molested a student, he is a scumbag. Even if he thought she was a "willing" participant (and we don't yet know the details), he broke the law, broke the education code of ethics, and took advantage of her naivete. A 34 year old man isn't looking for a "meaningful relationship" with a teenage girl less than half his age. He's looking to get what he can get and the girl probably felt older (with him playing into that) and thought he really liked her. He's old enough to know better and did it anyway.
On top of that, he's now putting himself in a situation in which he has alone-time access to students of all ages (through his tutoring business). I don't believe this was coincidental or a desire to "be his own boss."
EDIT: Just saw the above post (which was posted while I was typing), which means the girl didn't see yesterday's article prior to reporting her incident. I do wonder whether she found out he was doing private tutoring prior to reporting...
And it's also possible this young girl may have just discovered she's pregnant, thus her parents pursued the charges.