December 20: What to Watch for When Visiting Aging Loved Ones and How New DNA Technology Is Solving Decades-Old Murders

December 20: What to Watch for When Visiting Aging Loved Ones and How New DNA Technology Is Solving Decades-Old Murders As Canadians prepare for the holiday season, many will be spending longer, in-person time with their parents and grandparents, in some cases, for the only time during the year. These moments are crucial in noticing changes that can signal decline, changes that would not be as readily as apparent over phone calls or quick check-ins. Libby talked with Dr. Howard Chertkow, a practicing cognitive neurologist at Toronto's Baycrest Health Sciences Centre, about what to look for. And After more than 40 years, police ID'd Kenneth Smith as the murderer in 3 cold cases of homicide perpetrated between 1982 and 1997. The DNA technique forensic genetic genealogy was used to identify him as the killer of Christine Prince, Gracelyn Greenidge and Claire Samson. Libby asked Detective Sergeant Steve Smith to explain this fascinating technique that can help give families closure after decades.