RIVERHEAD - Police say a woman ended a screaming match with her newly moved-in boyfriend by fatally plunging a kitchen knife into his chest.

Cops say 32-year-old Cynthia Dean stabbed her boyfriend, Melvin Garcia, during a fight yesterday morning at their Granny Road home in Medford. Garcia, 48, was rushed to Brookhaven Hospital, but did not make it.

Garcia leaves behind 13 children.

Court documents reveal that Dean has an extensive criminal history dating back to 1998. Her bail has been set at $50,000.