02/21/2013 12:52 pm ET Updated Dec 06, 2017

Who Killed Terry and Darlene Anderson?

"Jon -- who would want my dad and step-mom dead? Who would do this to them?" Those words were uttered from Sherry Musilek, a woman who fights a daily battle for justice. A battle that has lasted for the past six years and a battle, Sherry insists, will last until the killer of Terry and Darleen Anderson is apprehended and brought to justice.

It was the evening of Oct. 21, 2005 in a rural Indiana town. Terry was tooling around outside in the shed while Darleen was watching television. In an instant, someone came into their home and killed them. Cause of death: blunt force trauma. Police initially said the alleged murder was disguised as a robbery -- but nothing had been taken from the home.

The alleged murder shocked the small town of Mongo, Indiana to its core. Besides, the town only has 200 residents. Who would want Terry and Darlene Anderson dead?

So far, that answer has eluded law enforcement. Nevertheless, each and every year Sherry holds a memorial service for Terry and Darlene. At the same time she remembers her father and step-mother, she asks -- pleads -- for someone to come forward with information about who killed them.

Please watch Sherry speak below -- and help her find justice.