Carl Mattson

The man suspected of bludgeoning an elderly Marshfield couple to death in November has pleaded not guilty at his arraignment on two counts of murder and other charges.

Christopher Keeley was indicted on two counts of murder in the deaths of Marshfield couple Carl and Vicki Mattson, both 70 years old.

Authorities have identified the victims in a double homicide that took place Tuesday night, and are asking for the public's help in finding the suspect.