Missing person: 28-year-old man in brown jacket

I lost my brother this afternoon around 3:15 PM. He was last seen near the Krannert Center for the Performing Arts on the University of Illinois campus, Champaign–Urbana. He’s about 6'2", with short black hair, and he wore a brown suede jacket over a gray hoodie, dark jeans, and white sneakers. He wears round wire-rim glasses and has a small crescent tattoo on the inside of his left forearm. This is so out of character for him and I’m really worried—his phone is off and I don’t know where he is. If anyone spots him anywhere in Champaign or Urbana, please reach out with any information.