The Houston Police Department arrested a man after he allegedly stabbed two sisters in the early morning hours of July 12.

Patrol officers responded to an assault in progress call at an apartment complex at 9109 Fondren Rd. in Houston at about 1:50 a.m. on Tuesday.

According to the police report, the suspect, Leonardo Jose Acosta Perez, 32, arrived at the victims’ apartment demanding to see his infant son. One of the victims, the child’s mother, asked the suspect to leave several times, but he refused and allegedly forced his way into the apartment.

The suspect claimed to have a gift for his son but then pulled out a knife and allegedly stabbed the first victim multiple times, according to police. The woman’s sister tried to intervene and received superficial stab wounds to her hands.

While law enforcement officials were en route to the scene, the victim’s brother-in-law, who also lived at the apartment, arrived home from work and discovered the suspect allegedly strangling his sister-in-law. He struck Perez with a baseball bat and held him until the police arrived.

“He was coming from work and got here just in time to assist, probably saved his sister-in-law,” a Houston Police Department officer told CBS News.

The first victim, age 36, was taken to the hospital and later released. According to CBS News, her sister was treated on the spot. The infant was in the apartment at the time of the incident but was unharmed.

Paramedics transported Perez to Memorial Hermann-Texas Medical Center, where he is still being treated, according to law enforcement. Perez, 32, has been charged with aggravated assault of a family member in the 337th Texas State District Court and will be taken to jail when he is released from the hospital.

The Texas Department of Family and Protective Services (DFPS) has a secure website for reporting suspicions of child, adult, or elderly abuse, neglect, or exploitation. If the situation is urgent and must be handled within 24 hours, DFPS recommends calling the Texas Abuse Hotline (1-800-252-5400). In the event of a life-threatening emergency or crisis, call 911 or your local law enforcement agency.