Ana Estevez says that during a contentious custody battle with her ex-husband, Aramazd Andressian Sr., she attempted to get a restraining order against him after she claims he made malicious statements against her and her mother in front of their 5-year-old son, Aramazd “Piqui” Andressian Jr.

TELL DR. PHIL YOUR STORY: Are you involved in a story that has made the headlines?

“My son said that he heard his father talking about how Yaya in his words, needed to go be with the angels. That she doesn’t belong here and he wanted to take my son away from her,” Estevez says, referring to her mother. “He heard his daddy say that he wanted to hurt Mommy and send her to the hospital so he could have him.”

WATCH: Woman Claims Ex-Husband Who Killed Their Son Made The Child Lie During Custody Battle

Estevez says she went to the police with the recording of her son describing the conversation and they filed a report with the Department of Family and Child Services.

In the video above from an exclusive interview with Dr. Phil airing Tuesday, Estevez describes what she says happened when she appeared in front of the judge with the officers. And, she shares why she believes the judge’s decision put Piqui in harm’s way.

WATCH: How Woman Says She Learned Ex-Husband Lied To Her For Years

Months later, after a trip to Disneyland with Piqui, Andressian Sr. murdered the boy. On Tuesday’s episode of Dr. Phil, hear about Piqui's final hours and his last conversation with his mother. Check here to see where you can watch.

TELL DR. PHIL YOUR STORY: I'm living a nightmare!

Mom Whose 5-Year-Old Was Murdered By Her Ex-Husband Recalls Last Conversation With Son