PEARLAND, Texas -

While Pearland police continued to investigate the mysterious death of a teenager, students at Dawson High School continued to mourn the loss of a friend.

"The mood at school was very depressing," senior Madyson Brown said. "It wasn't like Dawson. It wasn't lively. It was just very sad."

Pearland Police said 16-year-old Arrijana Hill was found dead Friday inside her home in the 3200 block of East Cedar Hollow Drive. Her death is being investigated as a homicide.

"It does not appear to be of natural causes, so we're performing a death investigation as is common in these kinds of scenarios," said Lt. Patrick Savage, with the Pearland Police Department.

Police said a female homeowner, whose relation to the victim was not released, called 911 after discovering the girl's body at 5 p.m. Friday. Arrijana's classmates said the teen was in school just hours before she was killed.

"(Arrijana) had a lot of friends," said classmate Joshua Mayfield.  "She was somebody you could easily get along with. I don't see how anyone would have a motive to do anything to her."

Police said they do not have a suspect in custody and wouldn't say if there were any signs of forced entry into the home.

Pearland Independent School District released a statement Monday morning about Hill's death. It read in part, "Pearland ISD offers its deepest sympathy to the student's family. As DHS faces this loss, we will continue to provide an environment where students feel supported."

The district said Arrijana was the manager of the school's track team.

Grief counselors were at Dawson High School Monday to speak with students and staff.

"We had counselors coming to our classes," Mayfield said. "They were there to help us mourn over the death of a good friend."

Investigators are now awaiting the results of an autopsy performed on Monday to get better idea how Arrijana was killed.

A vigil for Arrijana Hill will be held Tuesday, March 25 from 7 p.m. to 8 p.m. at Crossroads Community Church in Pearland.