Roisin Isner, 16 year old drummer for San Francisco band Tinkture, was on the receiving end of a prank gone wrong the night of July 4th in San Francisco's Dolores Park. Reportedly the musician was hanging out with friends watching the fireworks and an unidentified firework was tossed at the group. The explosive landed on Isner's hand, exploding and seriously injuring the 16 year old.

Chris Isner, Roisin's father, is offering a $20,000 reward for the name of the perpetrator and is reporting that Roisin will most likely lose her index finger and that her second and third fingers will also be permanently impaired and disfigured.

If there are any Punknews readers out there with information, please drop Mr. Isner a line via email: chrisisner[a]hotmail.com.