In August 2021, travel influencer Gabby Petito vanished during a trip with her fiance. Her online posts helped armchair detectives trace her final movements

In October 2021, Ana Abulaban and Rayburn Cardenas Barron were killed by Ana's estranged husband, TikTok influencer Ali Abulaban.

The murder of Daisy De La O sparked the viral movement #JusticeforDaisy, leading to her killer's conviction.

In February 2014, 14-year-old Breck Bednar was lured to his death by an older boy he met online. Discover how virtual manipulation led to a real-life tragedy.

Podcast host Zohreh Sadeghi and her husband were murdered by a stalker despite her seeking a protective order.

Ellen Higginbottom was killed in a premeditated attack; her final movements were documented on social media.

Nik Bird was fatally shot; a series of chilling Facebook posts led police to an obsessed stalker.

In April 2016, London police officer Gordon Semple was killed during a Grindr meetup. Texts and digital footprints guided detectives through the case.