Carroll County Circuit Court/Indiana State PoliceFormer pharmacy technician and accused killer Richard Allen confessed in a jailhouse phone call with his wife, during which he admitted to murdering Delphi, Indiana teens Libby German and Abby Williams on a hiking trail in 2017, investigators say.The revelation is contained in one of more than 100 court documents released Wednesday by order of Allen County Judge Frances Gull, who is overseeing Allen’s case. The tranche of filings also specifies fo