A TEENAGER saw a young mum looking “paranoid” the evening before a fire which killed her, her baby daughter and her mum, a court heard.

The jury in the trial of Carl Mills were shown a video of a police interview with a teenage boy who described seeing Kayleigh Buckley the evening before her death walking while looking behind her and looking scared.

He said he had seen her walk to the shops at around 9pm on September 17 but then said: “When she came back she kept turning around and stuff and just looked a bit scared.”

Mills, 28, of no fixed abode, is charged with the murder of Kayleigh, 17, her mum Kim Buckley, 46, and her baby daughter Kimberley, six months.

They all died when a fire ripped through their home in Tillsland, Coed Eva, Cwmbran, on September 18, 2012.

Mills denies the charges.

The teenage witness said he was out with friends at the time he saw Kayleigh.

He said: “I remember her missing a few steps.

“She looked paranoid and wasn’t concentrating on what she was doing. She kept looking behind her.”

He said he saw her for around 15 seconds and that it was around every five steps she was looking back but said he didn’t think anything of it at the time.

Defence barrister Patrick Harrington QC questioned the boy about whether Mills was treated as a “figure of fun” due to him living in a tent which was outside the Buckley home. The boy said he and his friends had teased Mills on one occasion “for fun”.

The police interview of another teenage girl was also shown in which she described seeing Kayleigh and Mills at around 4.30pm on September 17 and said it looked like they were arguing.

She said she had then seen Kayleigh at around 9pm walking down to the shop in her pyjamas on her own but then saw her walking back at around 9.30pm looking “really on edge”.

She said: “She kept looking behind her and looked upset. She looked like she had a phone to her ear.”

She said it was every two steps Kayleigh was checking behind her.

Proceeding.