It’s now been four years since a popular Estaire woman was murdered. Police were back at the scene last Thursday looking for new evidence that could point to the killer of Sheri-Lynn McEwan. The 40-year-old was found mortally wounded in her home four years ago on October. Three weeks after her death, McEwan’s husband committed suicide. Friends say he died of a broken heart and police never said he was a person of interest. OPP in Sudbury say if anyone has information that can help them catch the killer, they want to hear from you.