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 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.

Tuesday’s proceedings included an account of items found at the murder scene and testimony on the infamous “Bridge Guy” video.