Trying to Track a Story about a Monster Son and his Boxer Mother’s Final Blow

I once read a confession story on Reddit about two very different children and the dramatic consequences of one sibling’s dark behavior. The story was told from the perspective of a father whose first child was, in every sense, a challenge—a kid whose relentless screaming, tantrums, and violent outbursts pushed his parents to the brink. In stark contrast, their second child was a complete angel, filling the home with joy and promise. However, the older boy’s envy festered into dangerous resentment as he struggled to come to terms with this newfound adoration for his younger sibling.

The situation reached its breaking point one fateful day when the mother heard a desperate cry for help coming from the baby’s room. Rushing in, the parents were confronted by a shocking scene: their first child held a knife, and the tiny infant was visibly hurt. In an extraordinary turn of events, the mother—who had once excelled as a boxer—immediately sprang into action. In a flurry of fury and protective instinct, she subdued the older child, pummeling him until he was no longer a threat. In the aftermath, she locked the door, severing any further connection with him, leaving it uncertain whether the child survived that harrowing encounter.

The story, rich with raw emotion and relentless tension, left a lasting impression on me, and I have been trying to find it again. I must have read this between 2019-2022. Thanks for any help!