A West Babylon man admitted Friday to killing his 32-year-old wife last year.

Kerwyn Jaggernauth pleaded guilty to second-degree murder at Suffolk County court.

Police have said the 32-year-old man killed Sonja Williams in the couple’s Sheffield Avenue home, where he was found suffering from self-inflicted wounds on Feb. 20, 2016.

He faces up to 25 years to life in prison when he is sentenced March 29 by Judge Richard Ambro.

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