James White, from Warwickshire, subjected the victim to weeks of abuse, including rape and sexual assault.
Two women are also hurt and one remains in hospital in critical condition.
Police pursue anti-social riders and issue penalty tickets to "help make Leamington a safer place."
Arianna Rose's thefts included war medals and jewellery in her fraud across four counties, police say.
The girl was taken to hospital with serious head injuries, and she died on Saturday morning.
The officer is shortlisted for a bravery award after the incident in Stratford-upon-Avon.
Sgt Charlie Thompson is nominated for a Police Federation bravery award for his actions.
During the operation, officers stopped 14 vehicles for speeding offences on the A46 near Kenilworth.
Concerns had previously been raised about Warwickshire Police's response times to emergency calls.
