Father of rock-throwing suspect also arrested during investigation

JEFFERSON COUNTY, Colo. (KDVR) — A father of one of the suspects arrested in the deadly rock-throwing crime spree was also arrested during the investigation for obstruction.

Mark Edwin Koenig, the father of suspect Joseph Koenig, was arrested on Tuesday when investigators showed up at his house to speak with his son. Joseph was arrested in connection to the death of 20-year-old Alexa Bartell who was killed when a rock hit her while she was driving in Jefferson County.

According to the arrest affidavit, Jefferson Count...