British double murder suspect Neil Entwistle has been segregated from other inmates in an over-crowded US jail for his own safety.
Entwistle is in a 6ft by 8ft cell monitored by CCTV as he awaits trial for killing his wife Rachel, a former Midland teacher, and their baby daughter Lillian at their Massachusetts home.
US-born Mrs Entwistle, who worked as a teacher at Augustine's Catholic High School in Redditch, Worcestershire, and Lillian were found dead in their home on January 20.
Entwistle (27) flew to Britain and his parents' house in Worksop, Notts, after the shootings but agreed to be extradited last month.
He is now housed in the medical unit of Middlesex Jail, Massachusetts, that was designed to hold 170 inmates but houses 350 on the top three floors of a 20-storey building.
Middlesex Sheriff's spokesman Mark Lawhorne said while Entwistle was not sick, he had been moved into protective custody for his own benefit.
He added: "High profile detainees are handled on a case by case basis. It is our job to protect them.
"There is an inherent threat with high profile detainees. Some other detainees would look at them, doing harm to them, as a way to make a name for themselves."
His possessions have been taken from him and he wears an orange jump-suit and flip-flops. He is scheduled to return to Framingham District Court next Wednesday.
Entwistle is accused of killing Rachel and their nine-month-old daughter Lillian in a failed murder-suicide bid.
Court papers showed Entwistle's computer had been used to search the internet for information on how to kill people and commit suicide.