Tina and her cousin Colleen say they are deeply concerned about the Tina’s 11-year-old daughter’s behavior, which, according to Tina and Colleen, includes harming her younger brother and other children.

TELL DR. PHIL YOUR STORY: Have a Volatile Child, Parent or Sibling?

“When my son was just four months old, my daughter tried to smother him with his blanket by putting her hand over his mouth and his nose,” Tina claims. “When she’s angry with my son, she will slap him, pinch him, twist his legs, twist his arm, bend his feet back. Now, my son has to see a therapist because of the damage that was done to his ankles and his feet.”

WATCH: Why An 11-Year-Old Says She Has Been Harming Her Baby Brother

Colleen claims the young girl “smashed” a little girl’s head against the wall and killed a stray cat. “Tina’s daughter needs help before she kills herself or kills someone else,” she says while fighting back tears.

In the video above from Wednesday’s episode of Dr. Phil, hear more about the child’s behavior. And on Monday, hear what Dr. Phil says he believes is causing her to act out. Check here to see where you can watch.

TELL DR. PHIL YOUR STORY: Is Dr. Phil your only hope?

Dr. Phil Questions Mom About Stability Of 11-Year-Old’s Home Life