Suzanne Simpson's daughter accuses her father of killing missing real estate agent “in a state of rage and control.”

The eldest daughter of still-missing Texas real estate agent Suzanne Clark Simpson has bluntly accused her father of killing her because she tried to leave him.

“My mother was a victim of abuse at the hands of my father,” Chander Simpson, 20, wrote in a series of Instagram messages shared by the San Antonio Express-News on Wednesday, exactly a month after her 51-year-old mother last wrote was seen during a heated argument at home.

“My father took my mother's life in a state of rage and control,” she claimed of 53-year-old Brad Simpson, who was charged with domestic violence and tampering with evidence.

“My mother tried to leave my father and died,” claimed the grieving daughter.

Simpson, a mother of four, disappeared Oct. 6 after she was overheard arguing with her husband at their Olmos Park home, police said. Her body still hasn't been found.

Just an hour before she went missing, Simpson complained about being physically abused by her husband, according to her own mother, Barbara Clark, who believes her daughter is dead.

Chandler accused people of turning a blind eye to domestic violence.

“This should not be happening in our community and I will not stop speaking as my mother’s voice until she is found. I will forever represent all victims of domestic violence and assault,” she wrote.

“This is the time to talk. Speak for my mother. SPEAK FOR YOURSELF. Your voice is heard, my mother fought for her life, fought for her family and herself.”

Her father, a local real estate tycoon, was arrested Oct. 9 and charged with unlawful restraint and battery on a family member.

Neighbors heard them arguing outside their home on Oct. 6 – one then heard screams coming from the nearby woods, officials previously said.

The husband was later charged with additional offenses of tampering with or falsifying physical evidence and possession of a prohibited weapon for allegedly tricking his business partner into hiding an AK-47 for him. He is being held on bonds totaling $3 million.

Business partner James Valle Cotter was also arrested last month on suspicion of tampering with evidence and is being held on $500,000 bond.

Chandler urged everyone who supports her mother to “please be present” when her father goes to court next Wednesday.

“Stand silently at our side for my mother,” she wrote. “Justice will be served and my mother will be brought home.”

According to Express News, Brad and Suzanne have been married for 22 years and have three other children, ages 15, 8 and 5.

“As my mother’s daughter, I will tell our story again and again,” her eldest child wrote.

“With every breath I will make you remember her name. Suzanne Simpson was a victim of abuse and a victim of this community. Aside from being a victim, she was a phenomenal mother, hardworking, driven, loving and kind.”