SALT LAKE CITY — The wife and children of a Sevier County sheriff's sergeant who died after being struck and "catapulted" from a bridge in 2010 has filed a wrongful death lawsuit.

Jamie Aguilar, widow of Sevier County Sheriff's Sgt. Franco Aguilar, and her children are seeking unspecified damages against the motorists involved in Franco Aguilar's death as well as the Utah Department of Transportation, according to a complaint filed Monday in 3rd District Court.

Aguilar was killed April 29, 2010 while investigating a single-vehicle accident on I-70's Fish Creek Bridge in Sevier County. Corbin Mander was driving west in a separate vehicle when he "lost control of his vehicle and crushed Franco Aguilar against and catapulted him over the side of the bridge," according to the complaint.

The man fell 250 feet to his death.

Now, Aguilar's family is asking for damages totaling at least $300,000 against Mander, Mary Harlan — whose accident Aguilar was investigating — the two individuals who owned the cars Mander and Harlan were driving and the Utah Department of Transportation, alleging negligence.

Harlan is accused of having "negligently maintained and operated" her vehicle, ultimately leading to Franco Aguilar's injuries. The owner of the vehicles Mander and Harlan were driving allegedly "negligently maintained and entrusted the use" of their vehicles, the complaint states. 

The family states that UDOT "negligently maintained" the bridge.

In the complaint, Jamie Aguilar said Mander's negligence impacted her and her children resulting in "the loss of their husband and father, causing them extreme mental and emotional anguish; loss of care, comfort and companionship, society, guidance, love, affection, association, services and support of their husband and father" and the "permanent destruction of their family unit."

Mander faced criminal charges in connection with Aguilar's death and eventually pleaded guilty to negligent homicide, a class A misdemeanor. He was sentenced to 30 days in jail and 18 months probation. He was also ordered to pay $500 in restitution.

In the complaint, Jamie Aguilar asks for damages in an amount to be determined at trial to cover medical, funeral and burial expenses, lost income and lost future support, among other things.