Human Interest Real People Real People Tragedy Noah Presgrove’s Okla. Community Hangs Banner Urging Anyone with Answers to Speak Up: ‘Why Don’t You Help?’ "It doesn’t make sense that a good person like that is gone in such a cruel and unknown way," his brother tells PEOPLE in this week's cover story By Emily Palmer Emily Palmer Emily Palmer is a Senior Crime Writer at PEOPLE, where she has been a reporter since 2023. Her work has frequently appeared in The New York Times. She has also been published in The Boston Globe, Cosmopolitan Magazine and ELLE Magazine. People Editorial Guidelines and Adam Carlson Adam Carlson Adam Carlson is the senior editor for human interest at PEOPLE, which he first joined in 2015. His work has also appeared on ABC News and CNN and in The New York Times, Time magazine and elsewhere. People Editorial Guidelines Published on July 25, 2024 05:00PM EDT Comments The message is stacked in four lines typed in all capital letters across a 6-foot-wide banner that faces out to Highway 81 as the road cuts through Duncan, Okla. “YOU KNOW WHAT HAPPENED TO ME,” the sign declares outside a local business, both urgent and pleading. “SO WHY DON’T YOU HELP?” The appeal features a photo of Noah Presgrove in his high school football jersey, taken in August 2022, barely a year before he was found dead by the side of the road early on Sept. 4, 2023. He was 19 and was later buried in his jersey. What We Know About Noah Presgrove’s Last Day Alive (Exclusive) A banner on Oklahoma state Highway 81 heading south through the town of Duncan on July 8. Brett Deering "It doesn’t make sense that a good person like that is gone in such a cruel and unknown way,” Noah's older brother Dailen Presgrove tells PEOPLE in this week's cover story. Still, Dailen vows, "We won’t stop until Noah has justice." That's the same call to action made by a group of local demonstrators who gathered on May 15 in Duncan in the days after Noah's autopsy report was publicly released ruling his manner of death as "undetermined" despite his severe blunt force injuries. Authorities have said they don't suspect Noah was murdered but, nearly a year later, the investigation by Oklahoma state police continues. Was it an accident — or something more nefarious? Noah's family is working to uncover what really happened, with the help of a private investigator. Now, they're sharing details or the first time about their search for answers and their anguish over the young man they lost. "We can't rest until he's able to rest," cousin Ashley Chadwick says. For a while, Noah's loved ones thought that emerging details about a Labor Day weekend party he attended before he died — just a mile's drive from where his body was discovered by passing drivers — would help break the case open. "With the substantial amount of people that were at the party, I was like, ‘Oh, for sure somebody is going to crack,’ ” Chadiwck says. Noah Presgrove's Autopsy Reveals Clues and Questions in His Mysterious Death, Experts Say (Exclusive) Instead, conflicting accounts, a swirl of speculation and persistent silence from some in the community have frustrated the push for the truth, according to Noah's family. Increasingly, they have gone public with their campaign for answers. The banner along Highway 81 in Duncan hangs outside a local business whose owners are friends of Noah's father, Victor Presgrove, who maintains a similar sign at his home. Relatives also wear shirts that scream "SPEAK UP!" To see how the message is being amplified has been its own kind of salve, amid heartache. "People are making decals, making shirts, doing anything to help spread the word," Noah's cousin says. "[That's] been really nice."