The man dubbed "Bridge Guy" has long been considered the suspect in the murders of the two teens. Prosecutors have claimed that Richard Allen, charged with murder, was the man seen on the trail.

Three witnesses who were on the Monon High Bridge trail the day Libby and Abby were killed, including one who said she was best friends with Libby's older sister, testified Tuesday that a man they saw on the trail is "Bridge Guy" — the primary suspect depicted in a grainy photo police later shared to aid their investigation.

The forensic pathologist who performed the autopsy for Delphi eighth-graders Abby Williams and Libby German the day after they were found dead in the woods near the Monon High Bridge Trail in February 2017 backtracked on the stand.