← THE REGISTER

Register entry · Case file · Missing person · Foley MO

Bianca Piper (2005).

MUS-2026-0179

Archive card

MUS-2026-0179

Missing person

Incident
2005
Indexed
Oct 10, 2026, by MuseUnsolved
Agency
Lincoln County Sheriff's Office
Location
Foley MO

Public record. Index entry.

Index entry. Case details compiled from public reporting; our researchers have not verified this file yet.

Summary

What happened, as the record shows.

Bianca Piper, 13, was dropped off around 6:15 p.m. on March 10, 2005, on McIntosh Hill Road near Foley, Missouri, about a mile from home, for a therapeutic walk after a family argument. She never returned and her mother reported her missing at 8:20 p.m. An extensive search found no trace. The Lincoln County sheriff calls it a cold case with no named suspect; a new cold case unit formed in 2021 is giving it fresh eyes.

Timeline

What the record establishes.

  1. 2005

    Bianca Piper, 13, is dropped off for a walk on March 10 and never returns.

  2. 2021

    Lincoln County forms a new cold case unit to give the case fresh eyes.

  3. 2026

    No suspect has been named and she has never been found.

Key people

The people in the file.

MissingBianca Piper

13, of Foley, Missouri. Last seen March 10, 2005, on McIntosh Hill Road.

Investigating agencyLincoln County Sheriff's Office

Contact details change over time; confirm the current assignee before publishing.

Investigating agency

Where tips go.

This case is with the Lincoln County Sheriff's Office. If you know something, say something to them. For public-record leads for our researchers, use the tip line on any open file.

Continue

Keep reading.