There's a new $10,000 reward for information on Oakland's serial shooter … of cats. Friends of Oakland Animal Services announced the reward this week after four male cats were found shot by pellet guns in a 2-mile radius of the Lower Dimond neighborhood over five weeks, reports NBC Bay Area. One cat hit in the spine had to be euthanized. Another needed its leg amputated. And "there could be more that we are not aware of," Oakland Animal Services director Rebecca Katz tells People. "It looks like [the culprits] are hunting or targeting them." FOAS is accepting contributions to the reward fund, noting "serial animal abuse is a known precursor to violence against humans." Some $2,800 had been raised as of Thursday afternoon. (More cats stories.)