Search continues in Nathan O'Brien Amber Alert

Calgary investigators say there are "still more questions than answers" as the search for a missing five-year-old boy and his grandparents continues.

What we know about Nathan O'Brien's Disappearance

It's been five days since Nathan O'Brien and his grandparents were last seen, prompting an Amber Alert and national attention. This timeline presents what's unfolded and what we now know about...