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LACONA, Iowa — Father’s Day marks the one-year anniversary of the shooting death of the Marion County woman who was a wife, mother and grandmother.

Bill and Shirley Carter made a lifetime of memories at their home in Lacona. Up until the day the 68-year-old was shot to death on June 19, 2015.

“People say they don’t know how I can stand to be here when she was killed in this house, but this is where all my memories are. Good memories,” explained Bill Carter.

He feels closest to his wife of 52 years at their home and in the fields where they farmed side by side. Carter spent the months after his wife’s murder waiting for an arrest. A year later, one has yet to come.

“It has been terribly frustrating because I have been told three times that they were going to make an arrest,” said Carter.

Almost a year later, Carter admits that he has given up hope there will be “Justice for Shirley.”

“I was afraid of that, but I always thought there would be because of what they told me, but now I know my biggest fear is true. There won’t be any,” he said with tears in his eyes.

Carter claims his own son killed his wife. Earlier this year, he and his two other children filed a wrongful death suit alleging Jason Carter is responsible for their wife and mother’s death.

Jason Carter’s attorney called the claims made in the civil suit “outrageous.” Steve Wandro said there isn’t a “whit of evidence” showing Jason had anything to do with his mother’s death. He went onto say that the truth will come out during the trial will “vindicate” Jason.

The wrongful death suit is set to go to trial in April 2017.

The DCI is still working to bring “Justice to Shirley.” In the past year, Mike Motsinger, with the DCI, says law enforcement has conducted around 200 interviews and sorted through about 100 tips.