On Monday afternoon, a van plowed into pedestrians in Toronto鈥檚 north end, killing 10 people and injuring 14 others.

For those who witnessed the horrific attack and its immediate aftermath, it may be difficult to shake the mental images of blood and broken bodies strewn alongside Yonge St. that are now etched into their minds. So how can witnesses, both near to the event and watching from afar on television, deal with their trauma?

鈥業 COULDN鈥橳 PROCESS WHAT I WAS SEEING鈥�

Among those who witnessed the immediate aftermath of the horrific attack on Monday was retired social worker Carol Roberts, who was in the area to deal with a parking fine.

That afternoon, Roberts had made an impromptu decision to walk down an alley instead of the main sidewalk on Yonge -- and that could have saved her life. When Roberts finally emerged on Yonge, just moments after the van had passed, she saw bodies scattered across the sidewalk.

鈥淚 was scared,鈥� she told 麻豆影视. 鈥淚 didn鈥檛 know what was happening -- I just knew there was carnage in front of me and I couldn鈥檛 process what I was seeing.鈥�

Ever since, Roberts says she has been experiencing sweaty palms and other signs of emotional trauma.

鈥淪eeing all those people spread all over the sidewalk, I鈥檓 just kind of numb from it all,鈥� she said.

OVERCOMING TRAUMA

Trauma specialists say there are likely many people like Roberts who are now dealing with the after-effects of the attack -- an event that both challenged our belief that life is predictable and that Canada is relatively immune from such horrors.

is an associate professor at the University of Toronto where she teaches a course on working with survivors of trauma. The timing of the attack, Burstow says, can make it particularly distressing.

鈥淭he fact that this happened in the afternoon is bad for trauma because they couldn't say, 鈥楾his happened at night, and as long as I don't go out at night鈥︹�� This happened in the broad daylight,鈥� she told 麻豆影视.

Reactions to trauma, experts say, can range from confusion to shock. Later, they say, comes extended grief.

鈥淎nd it may take weeks, months,鈥� Toronto-based grief and trauma councillor told CP24. 鈥淔or some people, it may kick in when there鈥檚 another traumatic event in their life.鈥�

Experts say that healing comes from focusing on tributes and stories of heroism, as well as talking about the trauma to move from distress to acceptance.

鈥淥ne of the things they can do鈥� is be around people who care, who will listen to them as they talk about how they feel about it,鈥� Burstow added.

And that鈥檚 exactly what Roberts is now doing on her journey to recovery.

鈥淚 just keep talking about it, hoping that that helps alleviate some of the stress in my brain so that my body will relax,鈥� Roberts said.

FINDING HELP

is urging anyone needing support after the tragedy to contact them at 416-808-7066. The charity offers crisis support free of charge. also offers free walk-in mental health counselling from six Toronto locations.

鈥淐ommunity safety is not just a matter of saving lives -- it鈥檚 also a matter of wellbeing,鈥� Toronto police Chief Mark Saunders said at a press conference Tuesday afternoon. 鈥淚 don鈥檛 want people walking away thinking, 鈥業 need help but I can鈥檛 afford it,鈥� or, 鈥業 need help, but I wasn鈥檛 part of this investigation.鈥� Or, if you have a friend that may have witnessed it but has nowhere to go, if that friend can contact that person and at least start a process, it will be of great benefit to us as a whole, as a community.鈥�

With a report from CTV medical specialist Avis Favaro and producer Elizabeth St. Philip