California Department of Corrections and Rehabilitation

Jake Haro -- the man sentenced Monday to 25 years to life for murdering his 7-month-old son, Emmanuel -- just had his first state prison mug shot snapped, showing him looking as cold as the killer he is.

The 32-year-old is now locked up at California’s Wasco State Prison -- and he won’t see a parole board until December 2044. San Bernardino County Sheriff's Department

Jake’s sentencing comes after he pled guilty to second-degree murder, child endangerment and filing a false police report.

The judge hit him with 180 days, plus 6 years and 8 months -- plus 25 years to life, all to be served consecutively ... adding up to a minimum of 31 years behind bars. Haro is not eligible for probation.

Rebecca and Jake first claimed

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