Inside the Night Art Student Katelyn Markham Disappeared—and the Alibi That Fell Apart

Murder Files Unsealed · Jan 6, 2026 · 29m · transcript

This episode recounts the tragic disappearance and eventual murder of Katelyn Markham, a talented art student from Ohio who vanished in 2011. While her fiancé, John Carter, initially claimed innocence and maintained a specific alibi, investigators eventually uncovered deceptive polygraph results and inconsistencies in his digital records. After her skeletal remains were discovered in a remote Indiana woods two years later, the case transitioned into a homicide investigation that spanned over a decade. The narrative details how circumstantial evidence and persistent detective work finally led…