Traffic safety expert Trooper Steve Montiero breaks down newly released helicopter footage from the Seminole County Sheriff's Office, offering a closer look at the reckless driving that led to a deadly crash in Casselberry that killed two brothers.

Newly released helicopter video shows a suspect speeding and weaving through traffic before a crash in Casselberry killed two men. The Seminole County Sheriff’s Office says deputies were positioning stop sticks and were able to respond within seconds of the collision.