Cold case team, Silent Observer join forces for billboard effort

GRAND RAPIDS, Mich. (NEWSCHANNEL 3) - The Kent Metro Cold Case team and Silent Observer are teaming up, hoping to generate new leads in cold case murders.

89-year-old Mary Morrison was found murdered in her Cascade Township retirement home in July of 2011. She had been strangled.

Three years later, investigators are still trying to track down her killer.

Now, a billboard featuring Morrison has gone up along westbound I-196 at Fuller Avenue, where it will remain for 30 days.

Investigators hope it will jog someone's memory to help them crack the case.