A Texas man is accused of killing his wife less than a month after their wedding, allegedly telling police he was “obligated to do it.”

Francisco Mendez-Marin, 23, is now facing charges of murder after Carrollton Police discovered Karla Rangel dead at an apartment in the 1700 block of Metrocrest Drive on March 18, according to an affidavit obtained by Oxygen.com.

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Police were called to the home around 4:40 a.m. after receiving a call about a disturbance at the property.

“A caller into 911 stated that he could hear someone yell for help,” according to the affidavit, “and could hear what sounded like wood breaking inside the apartment.”

When they arrived, police found Rangel in “a pool of blood” not breathing with an injury to her throat, per the affidavit.

Officers located Mendez-Marin, who was covered in blood and had scratches on his arms, throat and chest, walking down the stairs after leaving the apartment, authorities said. A second male was found inside the apartment.

Mendez-Marin was carrying a “bloody pocketknife” and razor blade in the pocket of his pants, according to the court records. He was arrested at the scene and taken to the Dallas County jail, where he’s currently being held without bond, according to jail records reviewed by Oxygen.com.

Body camera footage allegedly captured Mendez-Marin at the scene telling the officers in Spanish, “I was obligated to do it” and insisting that, per an affidavit obtained by the news outlet, he “didn’t do anything bad.”

Police believe Mendez-Marin killed his new bride during a domestic dispute that turned deadly, according to the affidavit.

Investigators also found a marriage license inside the home, which showed the couple had been married on Feb. 26, per the affidavit.

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The Dallas County Medical Examiner’s Office has listed the 20-year-old’s death as a homicide, according to records reviewed by Oxygen.com.

Oxygen.com reached to the Carrollton Police for additional comment, but did not receive an immediate reply.

The Dallas County District Attorney’s Office declined to comment on the case to Oxygen.com. Oxygen.com also reached out to Mendez-Marin’s attorney Alexandria Cazares Perez, but did not receive an immediate response.