Daniel Lee Siebert | Murderpedia, the encyclopedia of murderers
Murderpedia, the free online encyclopedic dictionary of murderers. The largest database about serial killers, mass murderers and spree killers around the world
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Daniel Lee Siebert, often described in sources as a convicted American serial killer known as the "Southside Slayer," is reported to have died in 2008 from pancreatic cancer while on Alabama’s death row. Several sources note he was on death row and died at Holman Correctional Facility in Atmore, Alabama, in April 2008.[1][3][6]
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The core biographical and case details commonly cited include: multiple murders in Alabama (and alleged connections to other cases across various states), convictions for several capital murders, and confessions alleging involvement in additional killings. His 2007 execution was postponed due to his cancer diagnosis, and he subsequently died in 2008.[3][6][1]
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Media and podcast/TV sources frequently recount his alleged victim count ranging from a handful of confirmed murders to claims of more extensive involvement, though exact numbers vary across sources. The most consistently reported narrative centers on his Alabama crimes and death by cancer after a protracted legal process.[4][5][9][3]
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For broader context, some profiles also appear on Murderpedia and DBpedia, which summarize his crimes, capture, and death, though these should be cross-checked with primary court records or reputable news reporting for precision.[6][10]
If you’d like, I can dig into individual aspects (e.g., timelines of specific murders, details of trials, or contemporary news coverage) and provide a concise list with sources for each item. I can also help compare how different outlets describe his alleged victim count or his confessions.