Most likely it's just a rumor. As mentioned before, the Stanley Hotel is known for inspiring 'The Shining' but there's no solid information about actual murders there.
I think it's a rumor. While the Stanley Hotel has a very atmospheric and somewhat creepy feel, which was perfect for inspiring 'The Shining', there is no real - life evidence of murders. The idea of murders at the hotel might have been spread by people who want to add more mystery to the already famous and haunted - looking place. Without any reliable sources or historical documentation, it's safe to assume it's a baseless rumor.
Chapter 45, "Actively Hunting II", is the clearest early answer because it turns Damien's situation into a concrete plot event. The chapter turns that into something concrete by moving from As Fenrir sped through the forest, chased by dozens of Tree Demons,... to They were now both speeding toward him, hoping to arrive before the....
Chapter 34, "Mana Exhaustion III", is the clearest early answer because it turns Damien's situation into a concrete plot event. The setup is Damien watched as Fenrir and Cerbe brought and end to the two beasts..., but the pressure keeps building through Right now, his estimate on how long his essence reserves would carry....
Chapter 175, "Arielle's Midway Interrogation", is the clearest early answer because it turns Arielle's Midway Interrogation's situation into a concrete plot event. A useful checkpoint is the way the scene starts with As dawn broke over the horizon, Damien and Aquila descended... and follows through with Excluding that part." He muttered to himself..
Chapter 161, "Battle In Westmont VII", is the clearest early answer because the buildup finally cashes out in a real clash. A useful checkpoint is the way the scene starts with Damien who'd been drifting into unconscious quickly snapped his eyes... and follows through with Bit by bit, the tide began to turn..
Chapter 349, "A Family Once More", is the clearest early answer because it turns Arielle's situation into a concrete plot event. A useful checkpoint is the way the scene starts with By the time Damien and Lyone reached Greshan's north section, the... and follows through with This time, with something to lose..
Chapter 86, "Unbridled Fury II", is the clearest early answer because it turns Ghost Scions's situation into a concrete plot event. The chapter gives readers a real answer by opening on The assassin, desperate to avoid further punishment, quickly gave up... and ending on Are you… going to kill him?" he asked quietly.. In story terms, the chapter closes with "Authority?" Terrace's laugh was devoid of humor. "You sent assassins after my son and me.
Chapter 144, "Why Are You Running?", is the clearest early answer because it turns Damien's situation into a concrete plot event. Early on, Tssssh~ Shhhhh~ The forest was alive with movement.. By the end, Please, let me go!" Damien struggled against Osbourne's hold,.... Inside the broader family politics storyline, the chapter closes with His father., which gives family politics a stronger narrative position and pushes the power growth onward.
Chapter 67, "Gold Ranked!", is the clearest early answer because it turns Damien's situation into a concrete plot event. The setup is «-3,000 units of Magic Essence!» Damien smiled, understanding that..., but the pressure keeps building through The clover-shaped seal drifted through the air growing smaller as it....
Chapter 44, "Actively Hunting I", is the clearest early answer because it turns Damien's situation into a concrete plot event. The setup is «You have slain a Grade Five mana beast!, but the pressure keeps building through +100Exp!» "That's the seventieth we've dealt with." Damien's voice.... Once the chapter lands on Damien sat atop his wolf, his eyes scanning the area for any anomaly., the chapter closes with It was then something rang in his mind. These were demons. Tree demons.
Chapter 312, "Earning Dinner", is the clearest early answer because it turns Damien's situation into a concrete plot event. It opens with The night had deepened by the time Damien stepped out of the third... and closes on The walk back to the guild would take twenty minutes at a steady....