The FBI has joined the investigation into last month's deadly mass shooting at a pop-up birthday party near Morgan Hill and is offering a reward of up to $20,000 for information leading to an arrest, the Santa Clara County Sheriff's Office said Wednesday. Seven people were shot, one fatally, during the party on Saturday, July 25, at a rural property along Hale Avenue, officials said. "The FBI is offering a reward of up to $20,000 because we believe someone has information that can help move this investigation forward. No piece of information is too small, and your tip could make a difference in bringing justice to the victims, their families, and the Morgan Hill community." Anyone with additional information about the shooting is asked to call the FBI at 1‑800‑CALL‑FBI.