A man already condemned to spend the rest of his life behind bars for murdering a mother and three children has been handed a second life sentence after launching a violent hammer attack on a fellow inmate inside a maximum-security prison.

Damien Bendall, who is serving a whole life order for the 2021 Killamarsh murders, was sentenced again at Teesside Crown Court after being convicted of attempted murder for the ᴀssault at HMP Frankland.

The case has reignited public attention on one of the most devastating family murder cases in recent British history and raised further questions about prison security and offender management.

Bendall’s name first became widely known following the September 2021 killings at a home in Killamarsh, Derbyshire.

Inside that property, he murdered his partner, 35-year-old Terri Harris, along with her children John Bennett, 13, and Lacey Bennett, 11.

He also killed Lacey’s best friend, 11-year-old Connie Gent, who had been staying overnight for a sleepover.

The crimes stunned the nation because of their brutality and the ages of the victims.

In December 2022, Bendall received a rare whole life order, meaning he will never be released from prison.

The sentencing judge at that time described the murders as among the most serious offences that could come before the court.

Terri Harris had been pregnant when she was killed.

Her family later spoke publicly about her dedication as a mother and her plans for the future.

John Bennett was remembered as thoughtful and protective, someone who loved sports and family time.

Lacey Bennett was described as bright and creative, with a wide circle of friends.

Connie Gent was remembered by her family as kind-hearted and full of promise.

Memorials across Killamarsh and beyond reflected the depth of community grief.