'I know my sister,' Erickson said, recalling his disbelief that she wouldn’t have shared such an important event with her family. 'That was the turning point, for sure, in terms of what part of the story makes sense and what part does not,” Pete Erickson told NBC’s “ Dateline” in his first interview about the case since the shooting April 25, 2010. In the days that followed Heidi Firkus’ killing more than a decade ago, that shock turned to suspicion when her husband, Nick, disclosed an alarming fact: The couple’s home had been foreclosed on, and Heidi had long known about it, he said - even though she’d never once mentioned their financial troubles to her family. For Pete Erickson, the news was awful and confusing: Early one Sunday, an intruder broke into his sister’s suburban Minnesota home.
