A Prince George's County student wearing his school uniform was shot to death Tuesday morning while walking to school in Capitol Heights.

About 6:50 a.m. Tuesday, police officers were called to the 6100 block of Old Central Avenue and found 18-year-old Marckel Norman Ross outside, unresponsive with an apparent gunshot wound to the upper body. He was pronounced dead at the scene.

Ross was a junior at Central High School in Capitol Heights.

By late afternoon, police had not released any suspect information and said they were investigating to determine whether Ross was alone when he was shot and if Ross was shot by another student.

"We extend our deepest sympathies to this young man's family and friends, along with our fervent hope that those responsible for his death will soon be brought to justice," Prince George's County Public Schools officials said in a statement.

Schools spokesman Briant Coleman said Ross was involved in a modeling group and was a good student.

"He was a popular kid," Coleman said.

Grief counselors were at the school Tuesday and will be there throughout the rest of the week. A letter was being sent home to parents, Coleman said.

The police academy class was conducting a crime scene search Tuesday, and detectives were at the crime scene and at the high school, said police spokeswoman Cpl. Maria McKinney.

Ross' death was the 48th homicide in Prince George's County this year.

He is the second high school student in the county to be shot to death in the past few weeks. On Aug. 22, 17-year-old Amber Stanley, a senior at Charles Herbert Flowers High School, was killed in her Kettering home. No arrests have been made in her slaying.

McKinney said there is no reason to believe that the two students' deaths are connected.

Anyone with information can contact Crime Solvers at 866-411-TIPS (8477), pgpolice.org or by texting "PGPD plus your message" to 274637. People can also call police at 301-772-4925.