I framed my emotionally abusive stepmom for an affair to save my dad's life savings

Three years ago my dad was withering away under my stepmom. She had completely isolated him from our family, convinced him to cut my sister and me out of his will, and was quietly draining his retirement account to fund her own gambling habit. He was so depressed and brainwashed that no amount of intervention or evidence worked. One afternoon she left her iPad on the kitchen counter unlocked. I found harmless, slightly flirtatious messages between her and an old college friend from five years back. Nothing explicit, just vague banter. I took screenshots, cropped out the dates and time stamps, and printed them with deliberate gaps so it looked like an ongoing affair. i left the printouts face down on my dad's desk with a short note. It shattered him in the moment, but their prenup had an infidelty clause that completely nullified her financial claims. Within six months the divorce was finalized and she walked away with almost nothing. My dad has his sparkle back, reconnected with his grandkids, and finally has peace. He still thinks an anonymous private investigator sent him those papers. I destroyed a woman's marriage with Photoshop and scissors, and I don't feel a single shred of remorse.