The family of a Toronto teen who was shot and killed on a TTC streetcar during an altercation with police has cancelled a news conference scheduled for Wednesday afternoon.

“While we understand your interest and concern for us, we are trying to heal and regain some sense of normalcy in our lives,” the family said in a written statement released to the media late Tuesday. “While we know you have questions we simply do not have the energy right now to comment.”

Earlier Tuesday, Const. James Forcillo was charged with second-degree murder and later released on $510,000 bail.

About an hour after he was granted bail, Forcillo quietly left the courthouse and entered a waiting SUV. He did not answer reporters’ questions.

Ontario’s Special Investigations Unit announced Monday that an arrest warrant had been issued for the officer in connection with the death of Yatim, 18, who was fatally shot on an empty Toronto streetcar in the early morning hours of July 27.

In their statement, Yatim’s family vowed to continue their “fight for justice.”

“We thank all those who have been supporting us and guiding us through this time and we ask that you please respect that we need to save what energy we have left right now in our fight for justice for Sammy.”

According to Toronto Police Association President Mike McCormack, Forcillo is “very upset and shocked” by the charges.

“It’s been very trying on him and his family,” McCormack said outside the courthouse Tuesday morning.

Yatim’s death was captured by surveillance and cellphone cameras, videos from which were subsequently posted online.

Videos show Yatim holding a knife and pacing back and forth on an empty streetcar as police shout, “Drop the knife.” Then, over the course of 13 seconds, nine shots ring out.

Forcillo's lawyer, Peter Brauti, said he didn't think the videos would make the defence of his client difficult.

“I haven’t seen all of the videos and as everyone knows when you look at something from one perspective, you can look at it from a completely different perspective and you can see something completely different,” he told reporters after the bail hearing.

A closed judicial pre-trial has been set for Forcillo on Sept. 30 in Toronto.

Ontario ombudsman Andre Marin has announced an investigation of provincial guidelines issued to police for de-escalating conflict situations. And Toronto Police Chief Bill Blair has also announced that retired judge Dennis O’Connor will review the use-of-force tactics, as well as international standards for use-of-force training.