Lanna Fertuck said she and her siblings had long suspected her dad was responsible for their mom's disappearance.

"We all had our suspicions that he had done something to her," she testified Wednesday via video as a Crown witness at Greg Fertuck's murder trial.

Greg is charged with firstdegree murder, accused of killing his estranged wife Sheree and getting rid of her body in 2015. He has pleaded not guilty.

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