Kelsey Fitzsimmons and her fiancé spent almost every Sunday night with her mom and stepdad.

After Fitzsimmons gave birth to her son in February, Lauren and Will Page hosted “Sunday funday,” where the family, including Page’s kids from a previous marriage, would gather for dinner.

“We would have a full house, and this went on for a while,” Will Page told MassLive in an interview Monday evening. But the Pages began to notice some tension between Fitzsimmons and her fiancé, and the couple missed several Sundays in a row, which struck them as odd. “Something’s not right here.”

Not long after those visits stopped, everything changed for Fitzsimmons and her family.

On the last weekend in June, Fitzsimmons and her fiancé went to Maine for a bachelorette party ahead of their wedding, which

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