British man Liam Deane, 22, was handed a life sentence in prison last month after he admitted to fatally injuring his 2-day-old daughter Luna.
On Sunday, Deane was found dead in his cell at HM Prison Leeds in West Yorkshire, England. Fellow inmate John Westland, 28, has been charged with the murder, according to the U.K. Daily Mail.
On July 10, 21-year-old Karen Bissett handed her newborn child, Luna, to Deane.
In need of sleep, Bissett had gone upstairs to rest.
The next morning, Deane told her that Luna had fallen on her head and was having trouble breathing.
An ambulance was called and paramedics found the child’s face was badly swollen and bruised.
Luna was rushed to Leeds General Infirmary, where she was brought to intensive care. She died on July 14 of what a doctor described as “catastrophic brain injuries.”
Police interviewed Deane and he admitted that he had punched Luna in the face, squeezed her arms and shook her.
The U.K. Mirror reported that Deane told police he had become angry when the child “would not stop crying.”
Deane was later sentenced to life in prison and would have served a minimum of ten years.
“In my submission there is simply no explanation for the defendant’s behavior,” said Richard Wright, Deane’s defense attorney.
“His actions were wholly and utterly out of character for him. The defendant will have a very long time to reflect upon his terrible behavior,” Wright added.
Wright also read the court a statement from Luna’s mother, which read, “Seeing Luna on life support in the hospital will last with me forever.
“I can’t describe how that felt. I would not wish it upon my worst enemy.”
Detective Superintendent Jim Dunkerley also commented on Deane’s sentencing.
“This was an extremely tragic case where a newborn baby girl has lost her life before its even had chance to begin,” he said.
A hearing was scheduled to be held Thursday for Deane’s suspected killer at Leeds Crown Court.