Was rob grill and warren entner still freinds when rob grill died?

Rob Grill and Warren Entner, both members of the musical group The Grass Roots, had a complicated relationship over the years. While they had their differences, it appears that they maintained a friendship leading up to Grill's death in 2011. Their bond was rooted in their shared history and experiences in the music industry, despite any personal or professional challenges they may have faced.