Juice WRLD, the rising rapper known for tracks like “Lucid Dreams,” died over the weekend at a Chicago airport after a seizure at 21-years-old.

According to TMZ, Juice WRLD’s flight from California landed early Sunday morning in Chicago. Witnesses said that while he was walking through the airport, he suffered a seizure and was bleeding from the mouth when paramedics got to the scene. He was reportedly still conscious, but after being transported to the hospital, he was pronounced dead.

At this time, his cause of death is unknown, but law enforcement sources told TMZ that several members of Juice WRLD’s team said the rapper took “several unknown pills” prior to the seizure. The private jet which flew into Chicago yesterday reportedly held 70 pounds of marijuana and a bottle of codeine cough syrup was found on the plane.

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Juice WRLD, whose real name is Jarad Anthony Higgins, was just getting started in the industry. In 2018, he topped the charts with “Lucid Dreams,” scoring a No. 2 spot on the Billboard Hot 100. He signed a multi-million dollar contract with Interscope Records and released his debut record Goodbye & Good Riddance. Following the LP, he dropped the track “Legends” as a tribute to late rappers Lil Peep and XXXTentacion. In the song, he rapped: “What’s the 27 club? We ain’t making it past 21.”

This past March, Juice WRLD released his sophomore record Death Race For Love, and just a day before his death, he dropped the track “Let Me Know (I Wonder Why Freestyle).” The rapper was slated to perform at Rolling Loud Los Angeles this coming weekend, followed by the fourth annual Snowta NYE Festival at The Armory in Minneapolis on December 31.