記事内の引用について
Mom Who Was Teaching Teen Son to Drive Is Killed in Front of Him During Road Rage Shooting
https://people.com/crime/mom-who-was-teaching-teen-son-to-drive-is-killed-in-front-of-him-during-road-rage-shooting/

Milwaukee mother who was a WI DOC sergeant was shot, killed in front of her son
https://fox6now.com/2019/09/03/milwaukee-mother-who-was-a-wi-doc-sergeant-was-shot-killed-in-front-of-her-son/

Alabama Woman Arrested After Accidentally Shooting Husband In The Head During Road Rage Incident, Authorities Say
https://www.oxygen.com/crime-time/alabama-woman-erica-cole-accused-of-accidentally-shooting-husband-in-the-head-during-road-rage-incident

Instruction permit(ウィスコンシン州・運輸省HPより)
https://wisconsindot.gov/Pages/dmv/teen-driver/yr-frst-lcns/permit.aspx

Parent's supervised driving program(ウィスコンシン州・運輸省HPより)
https://wisconsindot.gov/Pages/dmv/teen-driver/prnt-spnsr/psdp.aspx