Adam Singer guilty of bludgeoning partner Sally Ann Harrison
A man bludgeoned his former partner to death with a rolling pin in a "premeditated and brutal" killing because he feared losing custody of their daughter, a court has heard.
Adam Singer killed Sally Ann Harrison at their Plymouth home in April 2012.
The 29-year-old, of Glendale Crescent, Salisbury, was convicted of murder by a jury at a retrial held in Bristol Crown Court. He had denied the charge.
Singer, a former galley assistant at HMS Drake, will be sentenced on Friday.
He told police he discovered Miss Harrison's body when he arrived home in the early hours, but the prosecution said she had been battered to death the previous evening.
Simon Laws QC told the jury Singer plotted the killing because he feared losing custody of 21-month-old Isabella.
He said Singer smuggled the murder weapon - a rolling pin - out of the naval base's kitchen where he worked.
Singer then tried to cover his tracks by creating an alibi and lying endlessly to police, Mr Laws said.
"It was a premeditated and brutal murder. He and Sally were separating and he wanted their young daughter to live with him," he said.
The jury heard the couple's relationship broke up in February 2012 but they still lived under the same roof.