johnny goose

So im asking a fr question ik i usually shitpost but i need advice.

About 5 months ago my second cousin raped my step sister. I have screenshots on snapchat of him admitting it and she took a rape kit after it happened. We reported it to the police and have never heard anything since. I dont know if its lack of communication with my step sister as i suspect because shes really nervous and scared to talk about it. Ive seen it eat at her these past months but she never wanted to commit on putting him in jail. Hes still free to this day. The kid destroyed my personal family and that girl mentally. I really have no clue how to handle the situation properly. I want him in jail.

For anyone about to say it yes i went and beat the shit out of him the next day his parents didnt report it until they lawyered up after my step sister stopped communicating with the detectives and at that point he had healed any wounds so i never got charged. I really just dont know how to handle the situation since rapes such a touchy subject and i cant force her to report him nor do i even really feel comfortable talking to her about it.