GRETNA - An 18-year-old man has been found guilty of two counts of second-degree murder in the killing of a Metairie man and his son during the commission of a crime spree in April 2015.

Dexter Allen was accused of fatally shooting David Pence, 56; and his 25-year-old son Nicholas following a party at the family's home.

A Jefferson Parish jury took deliberated for less than two hours before convicting Allen.

Then 17-year-old Allen and his girlfriend, 18-year-old Haraquon Degruy, were arrested for the execution-style murder of David who was shot to death while in his lounge chair and his son David was found on the floor just a few feet away, according to the Jefferson Parish Sheriff's Office.

David's wife Elizabeth, who was in a back bedroom at the time, found her husband and son gunned down in their living room shortly before midnight.

The New Orleans Advocate said the second-degree murder sentence means a sentence of life in prison, though Allen could be eligible for parole in 35 years because he was only 17 when the crime was committed.

Allen still faces trial in New Orleans Criminal District Court for carjacking and other offenses.

Degruy awaits trial in Jefferson Parish on two counts of being principal to second-degree murder and 17 counts of simple burglary.