SANTA CLARA COUNTY (CBS SF) — The father of a baby who police say was stabbed to death by her mother in Livermore was found dead Wednesday, according to authorities published report.

A spokesman for the Santa Clara County Medical Examiner-Coroner’s Office said the body of Daniel Sherman was found at an undisclosed location.

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Sherman was the father of William Brian Sherman, a seven-month-old baby who was stabbed to death in April at a rural area near Livemore.

Police have charged the baby’s mother, Ashley Newton, with murder after officers said she admitted to stabbing the baby numerous times. The 23-year-old Newton pleaded not guilty in June and remains in Santa Rita Jail in Dublin.

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Detectives have determined that Newton had a history of depression but were  working to determine a motive.

Police have not offered details on the circumstances surrounding Sherman’s death.

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The Oakland Tribune reported Sherman, who is believed to have been in his 20s and living in San Jose, was interviewed after his son’s killing but was never a suspect of person of interest.