Court documents show a Missouri man turned himself in to police, claiming he killed his pregnant girlfriend the day before.

KSDK reported that on Thursday, police found Brandon Johnson’s girlfriend, Raven Richmond, deceased at a home in Ferguson. Johnson allegedly confessed to the St. Louis County Police Department that he killed her on Wednesday.

Police arrived at Raven Richmond’s home in the 1700 block of Windward Court and found her dead with gunshot wounds to her stomach and forehead.

According to Richmond’s sister, Johnson had recently learned about the pregnancy.

Johnson also told police he disposed of his cell phone, gun and a knife after killing Richmond, according to First Alert 4.

Johnson has a history of arrests involving resisting arrest and assault on law enforcement. According to KSDK, at the time of the incident, he had recently completed probation for felony resisting arrest.

Johnson is being held without bond at the St. Louis County Justice Center.

He faces charges of first-degree murder, armed criminal action and three counts of tampering with physical evidence, First Alert 4 reported.

The investigation is ongoing, and the Ferguson Police Department is urging anyone with information to reach out to them at 314-522-3100 or contact CrimeStoppers at 1-866-371-TIPS (8477).

[Feature Photo via Saint Louis County Jail]