Ninja no more
Biking can be dangerous, but speeding after bad guys on a bike the breaks every speed limit in ninjago is worse. Jay. The blue one, funny smart, fearful but capable. Battling for life, stricken with pain because truthfully, he wasn't chasing, he was running.
She was Nya, young, little over 18 and was mortified by the site of doctors trying to remove debris and shrapnel from her boyfriend's body with him still being alive. Speed cameras made it look like he had lost control of the bike, Nya knew what truly happened, how deliberate it was. Suicide. Because he felt like he had failed. Like he had failed her. Because he kissed another girl.
Not that he meant to though, she kissed him. She forced him into an ally, why, to get rid of her. To work the plan!