No one will ever believe I got shot.
~ William Pratt

William Pratt, also known as The Mirror Man or The Selfie Killer, is a teenage serial killer and the main antagonist of the Criminal Minds episode, Hashtag (Season 10, Episode 7).

He was portrayed by Ian Nelson.


Early life

A year before the events of the episode, Pratt lost his parents in car accident and was sent to live with his aunt. This is implied to have scarred him forever and led to his villainous behavior.

Sometime later, he helped in the creation of the Creepypasta creature "The Mirror Man" alongside his best friend Connor Holt. The Mirror Man became a famous Creepypasta but William wasn't satisfied. He became desperate to gain fame and wanted to please Connor, who he saw as a mentor figure. Thus, he turned to murder to make the Mirror Man real.

The Mirror Man Killings

Pratt's first victim was rising social media teen Tara Harris; he bashed her head into a mirror and slit her throat with a shard. He then he posed a selfie of Tara and posted it online with the hashtag #FearMe. The media later named him "The Selfie Killer."

After killing Tara, he sets his sights her friend Alexander Chase, who worked with her in videos. Pratt shoots him in the back with a nail gun and later executes him. He then posts another selfie under the name Mirror Man, not liking his his other name The Selfie Killer. Hours later, William watches a video of his friend Daniel Osbourne making fun of the Creepypasta, which angers him. He then goes to Daniel's house and murders him, further cementing his fearful place in the media.


William is identified by the BAU during his work at a local mall. When the team assembles to arrest him, he grabs his nail gun and takes shopper Kimmy hostage. The BAU attempts to talk to him and make him surrender, but a news van pulls into the area to film the standoff. Knowing this could be his final attempt at fame, Pratt shoots Kimmy in the neck with the nail gun. Morgan then shoots him in the back, heavily wounding him.

Both Kimmy and Pratt survive. Pratt is shown in a hospital with Connor, and he states how because he is a minor, he should be out of juvenile prison soon. With a shocked Connor watching, Pratt takes one last selfie, saying that "No one will ever believe I got shot."

He was mentally institutionalized soon after.


William Pratt is an unlikely but remorseless killer who will do anything for Internet fame. It is implied that his parents' death in a car accident affected his mental stability and thus he attempts to find solace in Creepypasta and other Internet communities. The BAU's UnSub profile states that his psyche is fracturing over the course of the episode, causing him to kill people who insult him. He is also a narcissistic sadist, committing 3 murders over an Internet legend he created and posting disturbing selfies of his crimes.

Pratt is shown to be technologically proficient, being able to digitally manipulate images and post them online without being caught.



  • William Pratt is likely based off Anissa Weier and Morgan Geyser, two 12-year-old girls arrested for stabbing a friend 19 times to allegedly please Slenderman, the famous Creepypasta and Internet phenomenon character. In both cases, the criminals felt a duty to serve the legend they created and gain fame through violent murder(s). Also, both are mentally disturbed and went through the act without remorse.


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Season 2
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Season 6
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Season 7
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Season 8
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Season 9
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Owen McGregor | Owen McGregor's Partners | Ronald Underwood | Sheila Harrison | Sue Walsh
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Season 10
Alex Zorgen | Allen Archer | Andrew Ford | Benton Farland | Brian Stiller | Chad Griffith | Claire Dunbar
Colin Dupley | Dale Shavers | Danny Stokes | Dinah Troy | Donna Mangold | Donnie Mallick | Ellen Connell
Frank Cosgrove | Hayman Vasher | Jack Westbrook | James Burke | Jerry Tidwell | John David Bidwell
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Season 11
Andrew Meeks | Antonia Slade | Chazz Montolo | Claude Barlow | Dana Seavers | Eric Rawdon | Flora Martin Giuseppe Montolo | Jacob DuFour | John Bradley | Joseph Berzon | Lester Turner | Matthew Franks
Michael Thompson | Michael Peterson | Miss .45 | Mitchell Crossford | Mr. Scratch | Patrick Sorenson
Randy Jacobs | Robert Boles | Sam Burnett | The Beantown Beheader | The Bomber | The Chemist
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Season 12
Alan Crawford | Ben Davis | Bryce Jarvis | Cormac Burton | John David Bates | John Malone | Jonathan Rhodes
Kevin Decker | Kyle Ecklund | Lindsey Vaughn | Lionel Wilkins | Mark Tolson | Miss .45 | Mr. Scratch
Sara McLean | Stuart Barker | The Bone Crusher | The Crimson King | The Henson Twins | Thomas Yates
Trey Gordon | Zeke's Gang

Season 13
Asclepius | Caleb Sands | Cheryl Kaline | Desi Gutierrez | Gabriel Merza | Irene Jacobs | Jake Logan
Jess Carney | Josh Martin | Josh's Partners | Justin Franco | Kevin Peck | Kevon Winters | Lawrence Coleman
Lucky | Marcus Manning | Mark Henshaw | Mary Meadows | Melissa Miller | Michelle Gorman | Mr. Scratch
Sal Capilano | The Believers | The Central Park Ripper | The Messiah | The Neon Terror | Tony Capilano
William Lynch

Season 14
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Emmanuel Rask | Grace Lynch | Jacob Wallace | James and Marcus Wells | Jeremy Grant | Jordan Halloran
Mary Meadows | Roberta Lynch | Stephanie Carter | The Believers | The Chameleon | The Messiah
The Tall Man | Varnville Elgin-Milburn | Wayne Hollis

Season 15
Beaumont Parris-Crawford | Miss .45 | George Kyle Peters | Grace Lynch | Hayes Cullinan | Juliette Weaver
Louie's Gang | Louis Chaycon | Sebastian Hurst | Shelby Mattson | The Chameleon

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