On New Year’s Day, 2020, 23-year-old Darnell was captured on a video doorbell security camera assaulting his now ex-girlfriend on a stranger’s doorstep while their infant daughter was left alone in the car just yards away. He acknowledges that it’s him in the video, but claims he was drunk at the time and has no memory of the incident.

TELL DR. PHIL YOUR STORY: Caught on video: People behaving badly?

“Right in front of me I saw Darnell beat up my sister, and then lie and try to say he didn’t hit her at all,” says Brianna. She’s claiming that on the night in question, Darnell allegedly assaulted her sister three separate times. “My family and I feel that Darnell needs to be accountable and pay for his crimes. And if that means jail – then that’s where he belongs.”

WATCH: Man Caught On Video Attacking His Ex-Girlfriend Says He Has No Memory Of The Incident

Darnell is charged with first-degree kidnapping, coercion, and three counts of battery constituting domestic violence. If convicted, he could face up to life in prison. Does Brianna say a life sentence is too harsh?

This Dr. Phil exclusive airs Monday. Check here to find out where you can watch.

TELL DR. PHIL YOUR STORY: Outrageous news story in your town?