Police watchdog investigating triple-fatal Milton crash

Ontario's police watchdog says it is investigatinga triple-fatal collision in Milton earlier this year.

The Special Investigations Unit (SIU) said in a news releaseFriday it is appealing for witnesses to assist in its probe of the March 30 crash.

The two-vehicle collision happened around 3:20 a.m. in the intersection of Derry Road and Sixth Line.

A 16-year-old girl and an 18-year-old man travelling in the same vehicle were killed, as was 26-year-oldMousawar Ahmed, who was behindthe wheel of the other vehicle on his way to work.

All three were pronounced dead at the scene.

The SIU said it was notified of the case by Halton police on July 22. The news release offered no further information about what led Halton police to contact the SIU, or why it took until July for that to happen.

The SIUwon'treleasemore information on the matter until the investigation is finished, a spokesperson for the agency told CBC News in an email on Friday.

The SIUis an independent government agency that investigates the conduct of police officers that may have resulted in death, injury or the discharge of a firearm, or led to allegations of sexual assault.

At the time, Halton police said officers had responded to the crash and that its cause was under investigation.

In an email Friday, the police service declined to provide any additional information about the circumstances of the crash or what led them to contact the SIU.

"As their mandate has been invoked we request any inquiries be directed to the attention of the SIU," a spokesperson said.

According to the SIU, it has designatedtwo subject officials and six witness officials in the case.

Four investigators, a collision reconstructionist and one forensic investigatorhave been assigned to the probe, the SIU said.

Anyone with relevant information or dashcam video related to the crash is urged to contact the SIU.

Ahmed supported his family financially, friendsays

Family friendstold CBC Toronto in April thatAhmed was aman with a "big personality," who made others laugh and supported his family financially.

Ahmed was employedas a security screening officer at Toronto's Pearson International Airport.

"He was a very hard working guy. He was only 26 and he provided for the family,"Arwa Amir said.

Tevonne Brown, who had been friends with Ahmed since elementary school, said Ahmed had big goals and was focused on the "next big thing."

"He's touched a lot of people, not just me. He's definitely made an impact on the environment around him. Definitely will be missed, loved by many people, including myself. I always thought of him like a second brother," Brown added.