COQUITLAM — It was a brutal attack that shocked many in the Tri-Cities.

Now Coquitlam Mounties have made an arrest in the beating of a security guard in Port Coquitlam earlier this fall.

On Tuesday, RCMP announced a 16-year-old teen has been charged with one count of aggravated assault in relation to the attack.

Police wouldn’t say where the suspect is from, noting his young age, or reveal how the investigation led to the suspect, since the case is now before the courts.

However, RCMP Cpl. Jamie Chung noted it wasn’t a tip that led to the arrest of the suspect.

He also suggested investigators are still working to find other suspects believed to have taken part in the attack.

“We’re pleased that someone is being brought to justice on this, but we’re still looking for everyone who is responsible for this incident,” Chung told The NOW, adding police are not sure exactly how many other people were involved.

Hoshiar Bajwa, a 64-year-old security guard, was assaulted by a group of men at a construction site just south of Pitt River Middle School in the early hours of Oct. 14.

The incident began at 4 a.m. after a man approached the security guard asking for help, apparently telling the victim he was being followed.

During the conversation, two men came up and started attacking Bajwa.

The Surrey resident was beaten so badly he required more than 100 stitches to his head.

He was able to provide police with a rough description of one of the suspects at the time.

A few weeks later, Mounties released photographs of two jackets found near the scene.

Chung said the jackets and tips that followed are part of the investigation.

He also said police have spoken with the Bajwa family, adding they are relieved that an arrest has been made.

Police are still asking for any witnesses with information to come forward and contact Coquitlam RCMP at 604-945-1550 and quote file number 2012-28845.