A McDonald’s employee posted an unhinged Instagram rant accusing her manager of bullying her a day before she stabbed her to death.

Afeni Muhammad, age 26, repeatedly stabbed her manager, Jennifer ‘Jamma’ Harris, more than 15 times at a McDonald’s near Detroit on Thursday following her dismissal due to job performance issues.

Just a day before, Muhammad had taken to social media to express her rage at being sent home early two days in a row.

‘I got sent home early yesterday. I got sent home early today by the same person,’ Muhammad said in the Instagram reel.

“I’m telling you, she’s a bully. This is no joke… She must realize that being a mother with children doesn’t give her the right to come into the store and treat everyone with disrespect as if they are beneath her. She lacks respect and there’s nothing amusing about it,” Muhammad expressed.

Muhammad’s alleged victim, who had worked at the McDonald’s for 15 years, was a single mother of six.  

‘Like, seriously, man, I got sh** I need to take care of and she keep sending me home early… she’s playing games,’ Muhammad continued.

Muhammad accused her supervisor of engaging in “racial misconduct, generating negative vibes, and gossiping about others,” further stating, “That nonsense needs to come to an end.”

Afeni Muhammad, 26, posted a video claiming her boss was bullying her a day before she stabbed her to death in the McDonald’s they worked at in Michigan

Harris, a single mother of six, had worked at the McDonald’s for 15 years

Muhammad allegedly stabbed Harris at least 15 times at the Detroit area McDonald’s Thursday

She added of her boss: ‘Then she tell me I am snapping on people, No, no, no that’s false, I don’t snap on people. I don’t go doing that. No, I make peace. I’ve been creating peace.’

Muhammad is an aspiring rapper and uses the name ‘Risen Phoenix’ online

Harris apparently sent Muhammad home again after an argument on Thursday.  

Police say Muhammad told Harris ‘I’ll be back,’ before she went to her car and retrieved a kitchen knife. 

When she came back into the restaurant, she was wearing a mask, according to witnesses. 

A drive-thru customer saw the attack and fired a shot in the air to try to stop it, police said.

Muhammad reportedly tried fleeing but was detained by the customer before she was arrested by the Eastpointe Police Department.

The alleged killer was arraigned Friday and is being held on a $25 million bond.

She is charged with first-degree murder and carrying a dangerous weapon with unlawful intent. 

Muhammad’s lawyer said she is a high school graduate who is taking online classes for physical therapy.

‘There are disturbing facts in this matter, but other facts have not been brought out yet,’ the attorney told the court, as reported by The Detroit News.  

Police say Muhammad told Harris ‘I’ll be back,’ before she went to her car and retrieved a kitchen knife she used to kill Harris, pictured

Muhammad was arraigned Friday and is being held on a $25 million bond

The McDonald’s franchise owner said in a statement: ‘We are deeply saddened by this tragic incident, and our hearts go out to the victim’s family and loved ones.

‘Violence of any kind is unacceptable in my restaurants, and we are taking this matter extremely serious, as the safety and well-being of our employees and customers is our top priority. We are fully cooperating with law enforcement as they conduct their investigation, and the restaurant will remain closed until further notice.’

Muhammad is an aspiring rapper and uses the name ‘Risen Phoenix’ online.

Prosecutors said Monday she was previously convicted of stabbing someone in another state. 

‘The victim leaves behind six children, six young lives that will now grow up without a parent. This isn’t just a statistic; this is a family shattered, a future forever altered,’ said Macomb County Prosecutor Peter Lucido.