Two Maryland teens were found fatally shot inside a car Monday night, hours before they were slated to graduate from high school, police said.

The honor roll students, 18-year-old Artem Ziberov and 17-year-old Shadi Najjar, were supposed to graduate from Northwest High School in Germantown, Md., school officials said.

Police officers responded to a report of shots fired in Montgomery Village shortly before 11 p.m., where they found the teens' bodies inside a parked car.

The teens suffered gunshot wounds and died at the scene, police said. No arrests have been made, and a motive for the shooting wasn't known.

The school remembered the students at a heartfelt ceremony.

Northwest High School Principal Jimmy D'Andrea issued a statement to all students Tuesday, saying: "For those of you who knew Artem and Shadi, we ask that you remember and celebrate them. They were both excellent students who had a positive impact on those around them, and they will be greatly missed."

D'Andrea described Najjar, who took AP courses, as "a natural learner who had a genuine interest in knowing and understanding," according to ABC News.

Ziberov, a longtime Boy Scout, was a member of the National Honor Society and had plans to attend the University of Maryland, D'Andrea said.

The principal said he would deliver the students' diplomas to their parents.

"May God punish who did this to my son. I'm sure the police will find who killed my boy," Najjar's father, Adi, told WRC-TV while clutching his son's cap and gown.

Ziberov's stepfather, who didn't want to be named, told FOX5 he had no idea why his step-son was in Montgomery Village Monday.

Friends of the teens couldn't believe they were gone.

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Samyukda Babu, 17, told the Washington Post that Ziberov always made her laugh as she wept while wearing her cap and gown.

"None of this was meant to be," Babu told the Post. "He was supposed to be here with us today."

Merien Abou Ghazaleh, 17, told the newspaper she met Najjar at a mosque five years ago.

"He always stood up for me when someone said something about me. He was like an older brother who cared for me," Ghazaleh told the Post. "The way he passed is a way no one should. His friends and I will never give up until he gets the justice he deserves. He was truly an angel."