According to newly revealed Michigan jailhouse phone conversation with his sister, the now-convicted father of the Oxford school shooter said he wanted to ruin the prosecutor in his case and said she’d be going to hell. James Crumbley, father of Ethan Crumbley, made the comments, which were directed at Oakland County Prosecutor Karen McDonald, while his case was still pending. But according to James Crumbley’s attorney Mariell Lehman, there’s a “disagreement” about the “nature” of Crumbley’s words. According to McDonald, Crumbley “made a lot of threats” but she added that she didn’t want to gi…