A Minnesota woman, aged 23, has been taken into custody following the alleged fatal stabbing of her boyfriend during what has been described as a “stupid argument.” The tragic incident unfolded at an apartment in St. Cloud, where Katerina Ivanovna Markiv stands accused of second-degree murder in the death of 25-year-old Quinton McKay Hughes.

The events leading up to the arrest were detailed in a probable cause arrest affidavit. Around 4 a.m. on Monday, Hughes managed to call 911, reporting that he had been stabbed accidentally following a “minor disagreement.” During the call, dispatchers noted that his speech was impeded by coughing and difficulty talking.

Markiv subsequently took the phone, informing emergency services that the stab wound was located “at his left [expletive] nipple” and expressed apologies to Hughes during the call. This exchange set the scene for the rapid response by authorities.

Upon arrival at the apartment on Washington Memorial Drive, police discovered Hughes lying unresponsive on the floor, suffering from a stab wound amidst a pool of blood, as described in the affidavit. Despite efforts by first responders to revive him with CPR, Hughes was pronounced dead at the scene.

First responders performed CPR on him but they later pronounced him dead at the apartment.

After receiving her Miranda warnings, Markiv apparently told detectives she and Hughes worked together and they started dating in October. She said he picked her up from work the night before and they were spending the night at her apartment. She was drinking throughout the night. Markiv stated she wanted to “have fun” — meaning sex — with Hughes but he did not.

Markiv said this prompted a “stupid a— argument” that she “kinda f—ing made up in her head.” She was trying to explain her side of the story but he kept “cutting her off” which “annoyed” her. The defendant was holding a knife and she swung it toward him, thinking she was going to just “scratch” the victim, per the affidavit.

“She stated, ‘something in my head got triggered to where my f—in’ hand just went forward and it f—ing shanked him and I’m like what the hell just happened?’” cops wrote. “Defendant further stated, ‘it just happened. It literally just a reflex of mine. I sometimes don’t even know my own strength either.’”

Markiv told Hughes to call 911 while she put pressure on his wound. She said she did not want the victim to die.

Investigators spoke with two of the suspect and victim’s co-workers. One said Markiv would become “upset and very unhappy.” The other employee said that Markiv told him last week that “she gets so crazy to the point she will kill somebody.”

The defendant remains in the Stearns County Jail. Her next court date is slated for Monday.