A Sacramento father who admitted to violently shaking his baby boy has been sentenced to 25 years to life in state prison after a jury found him guilty of killing the 7-month-old. Prosecutors say the infant, Greyson, suffered catastrophic brain and spinal injuries and did not survive.
According to the Sacramento County District Attorney’s Office, Judge Kenneth Brody sentenced Alexander Coffey on December 19, 2025, to a term of 25 years to life in state prison. A jury had earlier returned guilty verdicts on November 20, 2025, for second-degree murder and assault on a child causing death.
What Prosecutors Say Happened
Prosecutors say Coffey was home alone with 7-month-old Greyson on November 11, 2023. He later told officers he had shaken the infant “really hard and fast,” according to the Sacramento County District Attorney’s Office.
The shaking, they said, caused massive trauma to Greyson’s brain and spine. The injuries were described as even more severe than what is typically seen in most car crashes.
Trial, Verdict And Sentence
The case went to trial this year, and jurors ultimately agreed with prosecutors’ account of what happened inside the home. Local coverage by ABC10 reported on both the November guilty verdicts and Judge Brody’s December 19 sentence, noting that Coffey was convicted of second-degree murder and assault on a child causing death…