When a nurse is gunned down in a quiet Ontario neighborhood, police launch a large-scale investigation. Who killed Lynda Marques, and why?

When a high school student suddenly disappears, investigators from multiple departments must work together to find the truth. What happened to Mujey?

When a teenager vanishes on her walk home one night, her family searches high and low for the truth. Where is Aaliyah Bell?

When a quiet community is rocked by a brutal murder, a family must wait decades for justice. Who killed Leslie Preer?

When a young woman goes missing after a day at the library, investigators must follow her digital trail. What happened to Jalesa Reynolds?

When a woman is brutally attacked in her home, the investigation reveals a history of violence and abuse. What happened to Lauren Charles?

When a young man vanishes after a night of celebrating with friends, his disappearance leaves more questions than answers. Where is Brandon Graves?

When a young couple’s dream honeymoon suddenly turns into a nightmare, the search for justice becomes an international affair. What happened to Christe Chen Dawson?

This week we’re looking back at several previous cases with significant updates since they were last covered.

When a young woman goes missing in the middle of the night, the investigation uncovers more than her family expected. What happened to Marisol Diaz?