DENVER -- Court records indicate the mother of the man who killed a Douglas County sheriff’s deputy on New Year's Eve was concerned for her son’s safety and took his guns.
In early November, Matthew Riehl’s mother, Susan Riehl, told investigators in Wyoming that she feared her son might be in danger because he stopped taking his medication.
She told police her son suffered from various mental health disorders.
Emails released by the University of Wyoming Police Department show Riehl was demanding his mom return his guns in October.
Riehl got his guns back after threatening to sue his mom.
Matthew Riehl ambushed deputies on New Year’s Eve, killing deputy Zackari Parrish.
Police records show Riehl purchased at least 11 guns from a gun store in Laramie, Wyoming, from 2010 to 2013.