of Dying and Killing Season (2001–2008) Death Angel officially reunited in August 2001 for Thrash of the Titans, a cancer benefit show for Testament frontman Chuck Billy. Original guitarist Gus Pepa could not participate in the reunion since he was out of the country. At Cavestany's suggestion, and with Pepa's blessing, the band enlisted longtime friend and fan, Ted Aguilar, to handle rhythm guitar duties. Originally planned as a one-off show, the band received such a positive response that they played a string of other well-received gigs around the San Francisco area and a pair of European tours, despite the band not having issued an album in over a decade. They also participated in Wacken Open Air and the Bang your Head 2004. Osegueda had since announced his involvement in the band All Time Highs, but had emphasized that he was going to remain a member of Death Angel. In 2004, 14 years after their last album, the band released The Art of Dying on Nuclear Blast records. Archives and Artifacts, a box set with remastered versions of the long out-of-print The Ultra-Violence and Frolic Through The Park, along with a bonus Rarities CD and DVD, followed in 2005. In April 2007, they headlined the seventh Pulp Summer Slam in the Philippines. In August 2007, Rob Cavestany released a solo CD of acoustic songs called Lines on the Road, the material on which was written in collaboration with Gus Pepa, and performed by Cavestany (vocals, bass, guitar) Gus Pepa (guitar) and Andy Galeon (drums). The bands fifth album Killing Season, recorded at Dave Grohl's Studio 606 in Northridge, California, was released on February 26, 2008. The video for the albums track "Dethroned" debuted online on April 17, 2008, on Headbangers Blog. Lineup changes, Relentless Retribution and The Dream Calls for Blood (2008–2014) At a show at the Grand in San Francisco on October 28, 2008, Death Angel announced that founding member Dennis Pepa would be leaving the band, and that the show would be his final live performance with them. Citing creative differences, he stated: "I've been with Death Angel since its inception in the '80s and believe it is time for me to move on. Throughout my career with the band, I've brought a punk-influenced edge to the Death Angel sound, and as an open-minded musician in need of change, I'd like to diversify and explore other opportunities within