Mr. Hayes opened the envelope.

“If Jason claims I fell, please do not simply accept it,” he read. “On March 5th, after I confronted him about Rachel, he grabbed my arm hard enough to bruise and told me, ‘If you destroy my life, I’ll destroy yours.’ I no longer felt safe in my own home.”

My stomach twisted painfully.

“I installed a small security camera at the top of the stairs,” he continued. “If something happens to me, my lawyer has instructions.”

He placed a small black flash drive on the table.

“This contains the footage Lily sent to my office the night before she died.”

Jason stared at it like it might explode.

“She wanted the truth heard,” Mr. Hayes concluded. “And now it will be.”

Two weeks later, I sat in a cramped police station room with my parents, Mr. Hayes, and a detective. A laptop sat open in front of us.

The video was grainy but unmistakable. Lily stood at the top of the staircase, eight months pregnant, crying, phone in hand. Jason was below, shouting.