Who is Garrett Lobeck from The Warrior Heir and what is their importance?

Garrett Lobeck is the school bully. He is the youngest of three boys, and all four are known for their bad habits, violence, and good looks. Garrett is Leesha's new boyfriend, having gained that status after Leesha and Jack broke up. He was a talented running back, and as such had gotten away with a great deal - even breaking the goalie's leg on a penalty play. It doesn't hurt that his father owns half the town either.