In Fontana California, an intruder broke into the apartment of 67-year-old Lorenza Marrujo. After breaking into her apartment the intruder was confronted by the scrappy senior citizen and Marrujo told him to "Back off right away!"

The intruder didn't want to catch those hands, so he left. However, he made a near-fatal mistake, he went into another apartment to harass the resident there, 81-year-old Elizabeth McCray, shaking her and throwing her to the ground.

Hearing the screams, Marrujo burst in, ready for action rescuing her friend and neighbor. You see, Marrujo is a black belt with over 20 years of martial arts training.

"I squeezed myself between her and him," Marrujo said. "I put mama on the side, and I jumped on him and I was punching him and everything, and I had the cane against his throat."

Marrujo said she didn't want to kill the intruder, so she switched positions to hold him down with her hands.

"He lifted up and tried to twist my hand, but at the same time, I twisted his and turned it around real fast and he was saying, ‘You're hurting me, you're hurting me,'" Marrujo said. "And I said, ‘I don't care. I don't care what happens to you. You had no right to hurt an elderly person.'"

"You're hurting me!"

"I don't care!"

I may have to retract my headline last week declaring the World's Coolest Grandma, Ms. Marrujo may take the cake.

You can read the full story and watch the amazing video here: