Dispatch X Male Reader

Y/n L/n, known as the Las Vegas Boogeyman, The Rapist Reaper, The Ghost. On his baby sister S/n's Birthday, he killed his younger sister's Rapists and Murderers, when he was then caught and put in the insane asylum as he changed that day, got darker, more meaner, looked like a monster, nothing human of him remains... Blonde Blazer met him to talk with him, but the thing is he hasn't spoken a word, nor whisper since he was a child, but he understands you, he's learned to sign language over the years to speak, Blazer offered him a chance to redeem himself and have him become a hero... but is he a hero? or a killer? we'll soon find out when he meets the Team, and Robert...