The Brief Former Brazoria County Deputy Kevin Tippit has been indicted on aggravated assault by a peace officer with a deadly weapon. Tippitt was reportedly fired after his involvement in the shooting death of 18-year-old John Mendoza Jr. in Lake Jackson. The former Brazoria County deputy who was fired following the shooting death of 18-year-old John Mendoza Jr. has been indicted. Lake Jackson teen shot and killedThe backstory:According to the sheriff’s office, just after midnight on June 1, Deputy Tippit tried to pull over John Mendoza Jr. near FM 2004. It was further observed that Tippit reacted to the Red Dodge Challenger entering FM 2004 by driving his patrol unit behind the Red Dodge Challenger.