Multiple outlets report that Trevor Dietz, the longtime manager of Irish rock band Fontaines D.C., has died. The band announces his death on social media and describes the loss as devastating. In their tribute, Fontaines D.C. say Dietz has been “beside us from the beginning” of their journey, and refer to him as the “sixth member of the band,” reflecting how closely he is credited with their development and support. NME and other sources include remarks from the band praising his commitment and character, saying he cared deeply for the group and for what he believed was “fair and right” in the wider world, and describing him as “fearless” in his beliefs. Billboard and the Independent similarly emphasize the band’s language of grief, including that they are “utterly heartbroken.” The reports align on Dietz’s role as long-term manager and on the central points of the band’s public tribute, including his longstanding relationship with the group. The outlets do not provide further details about the cause of death in the shared excerpts.