Almost half a decade has passed since the Manson murders, but you’d be hard-pressed to find many people who’ve never heard of Charles Manson. The cult leader — who led his followers on a mass-murder spree in the summer of 1969 — is immortalized in America’s cultural canon, the subject of a robust cache of films, TV series, music, and books. But should Americans be pressed to name a few of his victims, other than Sharon Tate, most people would draw up blanks. Manson will always remain famous for killing, and even after his death in November 2017, his name lives on in the echo chamber of the media.

As we see school violence back in the headlines these days, Jennifer Johnston, a professor of psychology at Western New Mexico University, suggests there’s a direct correlation between our national obsession with mass shooters and the rise in mass killings. Johnston is the co-author of a 2016 study that analyzed news coverage of mass killings and found that excessive coverage of shooters led to an overall increase in mass shootings over the past century. In the wake of the most recent incident in Parkland, Florida — in which a 19-year-old shooter killed 17 people at his former high school — Johnston scanned the news headlines and found much of the same.

“I go to my three or four major mass media news organizations and see if they're leading with the shooter's name and the shooter's photo,” Johnston says. “Unfortunately, in this case, that's what I found. The top stories, the main articles, were continually showing his face and his name and going into a lot background into who he was, which is exactly what we're not advocating.”

Read more about the media's role in mass shootings by Tasbeeh Herwees at GOOD Magazine