Metal Insider has learned through social media that former Threat Signal drummer Norman Killeen passed away this past Thursday, August 25th. Killeen was 38.

Killeen was part of Threat Signal from 2007 to 2010, joining the band not long after the release of their self-titled debut. He participated in a great deal of touring to support that album, and then recorded drums for the band’s sophomore album Vigilance. Killeen left the band in September 2010, following a tour of Europe.

Details as to the cause of his passing are currently unknown, but we do know that Killeen is survived by his wife Nancy and his son Hayden.