He said he's been "targeted by staff,” “verbally harassed and abused without cause” and “treated disproportionately harsh" as a federal inmate.
Michael Joseph Honkomp, 30, was shot in an exchange of gunfire with police and has been charged with murder and other counts.
Salvatore Anello, Chloe Wiegand's grandfather, has filed paperwork to change his plea in a deal to avoid jail time, a family attorney told NBC News.
The sheriff's office initially said it was looking at the incident as a rescue after a call came in from a climber with Portland Mountain Rescue.
The cubs were born from in vitro fertilization to a surrogate cheetah mother in an effort to save the species. There are only 7,000 cheetahs left in the wild, where only 5 percent of cubs survive.