Picture-Perfect Murder

Joshua Ingram has been a little lost since Mother died. Luckily, he found a group of like-minded online—men and women who, just like him, like games and puzzles. 
Every month, they receive a challenge in an envelope, a murder to replicate, and Joshua has found the perfect mannequin for this month's challenge. The question is if he can execute his murder with enough skill to give him the highest points, and he really hopes the kid in the convenience store didn't see the specks of blood on him. What would happen if he got caught? Mother wouldn't approve.