Mechanical shop teacher Jarbas Noronha told his students to barricade the door and prepare to flee out of the garage, if the shooter made it inside. He kept them calm while they got frightening messages about the attack unfolding outside their classroom.

Pressure is mounting to allow Russian athletes compete at the Olympics under the Russian flag. Reporter Georgi Kantchev with Wall Street Journal is in Italy, he'll take us through what the International Olympic Committee has been saying. We'll also hear from Bruce Berglund, historian and author, about how Russia has used sport as a political tool.

In her new book How My Dog Saved My Life, former CBC producer Cate Cochran tells 30 Canadian stories of dogs who have changed everything for their humans, saving their lives literally and figuratively. We'll meet some of these remarkable canines, including a black lab and golden retriever mix named Foreman who's trained to provide medical assistance for his owner, Sinead Zalitach. Sinead was born with an extremely rare congenital condition called Parkes Weber syndrome and Foreman is so attuned to her that he knows she's in trouble before she does.

More details are emerging about the mass shooting in B.C. that left nine people dead. We get an update on the shooter. And a town resident describes the pain people in Tumbler Ridge are feeling and the kindness and patience they need, in the absence of answers. Plus, we hear from two people who offer trauma care in the wake of school shootings, to help us all begin to process this unthinkable tragedy

Joe MacInnis has spent his life going where very few people ever have — beneath the ice at the North Pole, down to the wreck of the Titanic, and into the deep waters of Lake Superior to visit the Edmund Fitzgerald. Now 88, the Canadian physician and deep-sea explorer looks back on a lifetime of high-risk exploration. He talks about the moment he caught “sea fever” as a teenager, what those extreme environments taught him about fear and teamwork, and why leadership — not technology is what really matters when survival is on the line.

It's been one month since Iran was rocked by what’s being called the country's deadliest crackdown in modern history. On January 8th and 9th, security forces brutally attacked protesters who had taken to the streets calling for regime change. It’s still unclear how many people were killed. A shut down of communications has made it tough for people living outside of the country to get information on exactly what happened. CBC's Liz Hoath brings us this story about Canadians who are slowly learning what’s happened to friends and family back in Iran.

An 'unimaginable tragedy' in Tumbler Ridge, British Columbia. Yesterday afternoon, a shooter entered the local secondary school and opened fire. At least 10 people in the tight-knit rural community are dead, including the suspected shooter. It's the second deadliest school shooting in Canadian history. We check in with the community to hear what happened, and how they are leaning on each other in the wake of this tragedy. We also speak with Dr. Shimi Kang, a child psychiatrist about how to talk to your kids about school violence.

The Gaza-Egypt border crossing partially opened last week, after the return of the body of the last Israeli hostage. However very few people have been able to leave Gaza for medical care or return to reunite with their families. A pediatrician describes the young patients he saw dying or suffering in Gaza, unable to get outside help. A 29-year-old woman says she fears her dream to study abroad is in jeopardy.

Recently Vancouver city council passed a unanimous motion calling on Transport Canada to do something about LED headlight glare. Saskatoon optometrist Rachael Berger welcomes the motion because she's seeing more and younger patients who are finding it difficult to drive at night. Vehicle lighting expert Daniel Stern says Canada needs to change its current regulations because they had halogen bulbs in mind, not modern LED lights.

President of the Angus Reid Institute, Shachi Kurl breaks down new polling data that shows the number of Albertans committed to leaving Canada remains low, despite a number of events held by separatist around the province. Plus veteran strategists talk about how the separatist movement could play out politically across Alberta and the rest of the country.