A pledge from the National Mustang Association increased the payout from $10,000 to $20,000.
It’s not clear from the BLM news release if it’s the group in Colorado, Utah or somewhere else.
The advocates in Colorado are helping NPS remove wild horses from Mesa Verde National Park.
Those in Utah run cattle on a BLM grazing allotment that overlaps the Tilly Creek and Bible Spring HMAs.
The IRS Form 990 suggests it’s the group in Utah.
Western Horse Watchers Association 
It’s AWHC that is offering to match the BLM reward for the shootings in Jakes wash herd area within the Pancake Hma.