A former Brookstown Middle Magnet School assistant principal accused in the 2016 slaying of a pregnant colleague and their unborn child will stand trial Aug. 6, a Baton Rouge state judge decided Monday.

Robert Jovantie Marks, 40, of Zachary, is charged with second-degree murder and first-degree feticide in the killing of 40-year-old Lyntell Washington and her unborn child.

Washington's body was discovered June 14, 2016, in an Iberville Parish field with a gunshot wound to the head. Her car, and her 3-year-old daughter wandering near it, were found five days earlier in a parking lot on Newcastle Avenue in Baton Rouge. The car was splattered with blood.

Cellphone records indicate Marks and Washington were in the Iberville Parish area about 9:45 p.m. the night she went missing and 15 minutes later the car was in the area where the toddler was found, a police report says.

Marks, who is married, maintains his innocence. He remains free on $500,000 bail.

Washington was an instructional specialist at Brookstown Middle Magnet.

State District Judge Beau Higginbotham is presiding over the case.

Follow Joe Gyan Jr. on Twitter, @JoeGyanJr.