HomeKrimidexstaircase deathConceptstaircase deathDefinitionRead moreThe Kathleen Peterson Case — Staircase Death or MurderMichael Peterson was convicted of murdering his wife Kathleen in 2001, but after his conviction was vacated, he entered an Alford plea to manslaughter in 2017.Related articlesThe Kathleen Peterson Case — Staircase Death or MurderMichael Peterson was convicted of murdering his wife Kathleen in 2001, but after his conviction was vacated, he entered an Alford plea to manslaughter in 2017.