The New Haven Register reports 28-year-old Benjamin Carpenter was sentenced in New Haven after a jury in April found him guilty of murder and second-degree arson in the death of 45-year-old Jennifer Antonier.
Carpenter maintained his innocence.
Antonier was found dead in her Hamden home after a fire on Dec. 26, 2015. Police said Antonier had been beaten and stabbed. A car registered to Antonier was found burned shortly after.
Police say the killing happened on Christmas night, or around midnight.
Two of Carpenter's cousins had testified that Carpenter said he stabbed a woman.