A police car sits at the intersection of 17th St. and Ellerslie Road Tuesday. ((CBC))

Students at Edmonton's Centre High school are still coming to terms with the death of their classmate Emmanuel Amoah.

The 19-year-old's body was found Monday near Ellerslie Road and 17th Street by someone who was walking through the area — 12 days after he was last seen leaving school.

An autopsy was performed Wednesday morning.  Police have not revealed the cause of death. 

Amoah's friends Lydia Alebel and Janet Balogun said they can't believe he's gone.

The two teens last saw him on Sept. 1.

They said he told them he was going to visit someone after school and then he vanished.

"He's always smiling, always laughing...always joking with people.  And it's just really sad," Balogun said.

"If any of his friends were getting into fights, he'd be the one who'd say 'Don't do that, chill out,'" Alebel added. "He'd always make them laugh."

The family's pastor said Amoah was a polite and intelligent teenager. And that Amoah's family been reeling since police delivered the news that their son's body was found in a remote location far away from their west end apartment.