(FARMVILLE) -- As the funeral is held Tuesday for three victims of a convenience store robbery, authorities in Pitt County are still searching for three suspects in the triple murder of three employee of the store. The three employees of the Hustle Mart in Farmville were shot and killed Sunday night. One of the victims included a 16-year-old high school student.

All three victims were were related. One of the dead is 16-year-old Mokbel Mohamed Almujanhi.  He is the son of the store's owner. The gunmen also shot the owner's brother, 26-year-old Nabil Nasser Saeed Al'mogannahi, and cousin, 24-year-old Gaber Alawi.  Almujanhi was a student at Farmville Central High School.

Pitt County Sheriff Neil Elks said it appears from the surveillance video that all three store employees cooperated with the three gunmen.  "It was very tragic, very disturbing and 100 percent unnecessary," said Elks.

Members of the Farmville community gathered Monday night in front of the convenience store for a vigil to remember the three victims. The funeral for all three is scheduled for Tuesday at 12:30.

A $10,000 reward is being offered for any information that leads to the arrest of the suspects being sought in the case.  The rewards is offered by CrimeStoppers and the family of the victims.