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The baby Breon Stewart was carrying was also struck by gunfire in last week's fatal shooting, New Orleans coroner Dr. Jeffrey Rouse said Monday.

Rouse said in a statement that the gunshot wounds caused the demise of the baby, a near-term male. Stewart was the girlfriend of Lionel “Bumma” Delpit III -- the Big Chief of the Black Feather Mardi Gras Indian tribe -- who was also gunned down in New Orleans East.

Police are now treating the shooting as a triple killing and intend to book any suspects with feticide in addition to two counts of homicide, Ofc. Frank Robertson said.

Neighbors said dozens of shots sounded just before 10 p.m. on Dec. 16 in a parking lot of the Wind Run Apartments in the 12100 block of the Interstate 10 Service Road. When the shooting was over, Delpit III, 25; Breon Stewart, 23; and the couple’s baby, whom they had planned to name Lionel Delpit IV, were dead in the front seat of their vehicle. Police were left searching for suspects.

The deaths of Delpit and Stewart were the 151st and 152nd homicides of the year in New Orleans, a grim milestone that means the city has now exceeded last year’s total of 150 killings.

The Wind Run killings also were the seventh slaying to claim more than one victim in New Orleans East alone this year.