‘Hell on Wheels’ killer Mackenzie Shirilla is the ‘Mean Girl’ of her prison — and took multiple lovers, inmate says
Mackenzie Shirilla, known as the 'Hell on Wheels' killer, is portrayed differently by a former inmate than in the Netflix documentary 'The Crash.' While the documentary shows her expressing remorse, the former inmate describes her as a 'Mean Girl' who enjoyed a glamorous prison life. Shirilla reportedly engaged in relationships with other inmates and presented herself as a prison celebrity.
- ▪Mackenzie Shirilla is serving two concurrent 15-to-life sentences for killing two people in a car crash.
- ▪A former inmate described her as the 'Regina George of prison,' indicating she acted like a popular figure among inmates.
- ▪Shirilla reportedly maintained a glamorous appearance and engaged in relationships with other women while incarcerated.
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| Original publisher | New York Post |
| Canonical URL | https://nypost.com/2026/05/20/us-news/hell-on-wheels-killer-mackenzie-shirilla-is-prison-mean-girl-inmate/ |
| Publication time | Wed, 20 May 2026 07:00:00 -0400 |
| Retrieval time | 2026-05-20T11:05:02.097Z |
| Last seen | 2026-05-20T11:15:47.851Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
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| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | Qziiuw1aeY6q |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
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| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
US News exclusive ‘Hell on Wheels’ killer Mackenzie Shirilla is the ‘Mean Girl’ of her prison — and took multiple lovers, inmate says By Georgia Worrell Published May 20, 2026, 7:00 a.m. ET See more of our coverage in your search results. Add The New York Post on Google “Hell on wheels” killer Mackenzie Shirilla is nothing like the remorseful, hardened prison inmate depicted in the hit Netflix doc, a former inmate said. “When she walked out in the documentary my jaw literally dropped, because her demeanor and the way that she looked was nothing like the person I was in there with,” Mary Katherine Crowder, who served time with Shirilla at Ohio Reformatory for Women, told The Post.
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