(Photo: Facebook)

Jason Rosenthal, vocalist/guitarist of influential Long Island post-hardcore/screamo unit On The Might Of Princes, passed away from a sudden heart attack on the night of August 12, according to a Facebook post from his longtime girlfriend. He was 35. Bassist Tommy Orza confirmed his passing on the band's Facebook page, writing:

"it is with insane sadness that i have to write and say that jason rosenthal, singer/guitarist for On the Might of Princes, passed away last night. i don't know what to say. of course he and i have had many differences, but at the heart of what we did and what we shared, is an overwhelming amount of passion for the beauty and struggle of a long on/off friendship and trying to keep a sinking musical ship afloat. he gave so much of himself through his music, and touched so many hearts... helping us along through our hardships and loves. i'm not going to post any particular song right now, but encourage you to find the song that hit with you the most, and blast the fucking shit out of it. goodbyes like this are not good, but the flame unique people like him leave behind will warm us until we join him somewhere. be strong and hug the people you love everyday."

Rosenthal fronted OTMOP from their 1998 formation until their 2004 demise, performing on all three of their full-lengths, including 2003's Revelation-released Sirens. After the band broke up, members went on to contribute to a long list of LI bands, including Small Arms Dealer, Gracer, Primitive Weapons and, in Rosenthal's case, the Brass. Recently, Rosenthal had relocated to Austin, Texas. OTMOP had reunited a handful of times throughout the past few years, and were scheduled to perform at this year's Long Island Fest back in June, before canceling at the last minute for undisclosed reasons.

Our deepest condolences go out to the family, friends and fans of Jason Rosenthal.