Victor Miller, the screenwriter who created the template for modern slasher horror with "Friday the 13th," died Monday in Alameda, California. He was 86. His son Ian confirmed the death to Variety.

Miller's 1980 screenplay for "Friday the 13th" became one of cinema's most influential horror works. The film didn't just succeed commercially. It reshaped how filmmakers approached the genre for decades. The summer camp setting, the masked killer, the methodical stalking of isolated victims, the final girl who survives through cunning rather than luck. These elements, which Miller established in his screenplay, became the grammar of slasher cinema.

The original "Friday the 13th" cost $550,000 to make and earned $39.7 million domestically. More than that, it spawned a franchise that reached twelve theatrical sequels, plus a 2009 reboot, a television series, comics, novels, and video games. Jason Voorhees, the masked killer who would define the series, emerged as one of horror's most durable icons. Yet Jason didn't appear in Miller's original screenplay. He was added to later sequels. Miller's achievement was creating a scenario so effective, so replicable, that studios built an empire from it.

Before "Friday the 13th," Miller worked in television. He wrote episodes for shows like "The Twilight Zone," "Mannix," and "The Night Stalker." He also wrote the screenplay for "Madman" (1981), another slasher entry that benefited from the commercial template he helped establish. But "Friday the 13th" remained his signature work.

The film's cultural footprint extended beyond horror fandom. The summer camp slasher became a genre unto itself. "The Burning" (1981), "Sleepaway Camp" (1983), "Friday the 13th Part VII: The New Blood" (1988), and countless imitators borrowed from Miller's formula. The final girl archetype that Miller developed through Adrienne King's character Alice Hardy influenced how female characters appeared in horror cinema for the next four decades.

Miller's original screenplay was straightforward and effective. He didn't overcomplicate his premise. A group of young counselors returns to reopen Camp Crystal Lake, a site where a child died years earlier. Mysterious murders begin. The killer's identity remains hidden until the climax. This structure, now familiar to anyone who has watched horror films, felt fresh in 1980.

The film also benefited from Sean S. Cunningham's direction and a production team that understood how to maximize minimal resources. But Miller's screenplay provided the foundation. He understood pacing, atmosphere, and the mechanics of suspense. He knew when to show violence and when to let audience imagination do the work.

In 1980, "Friday the 13th" competed against "The Shining," "The Empire Strikes Back," and "Raging Bull" for cultural attention. It didn't win awards. Critics often dismissed slashers as disposable entertainment. Yet the film endured. It defined a subgenre. It influenced everyone from John Carpenter acolytes to contemporary horror directors like Ari Aster and Oz Perkins, who grew up watching what Miller created.

Victor Miller's death marks the passing of a figure whose influence on popular cinema went largely unacknowledged outside the horror community. Yet the slasher film remains one of American cinema's most durable and internationally recognized exports. That durability rests on the foundation Miller built in 1980.