Sarah Kresilova, 24, was killed in her Chicago apartment on June 24, 2013. She was found with multiple stab wounds to the head, neck, chest, and abdomen; investigators say the fatal attack was carried out by her roommate, Mateusz Zabrzenski.

Reports state Zabrzenski left the country soon after the killing, handed the murder weapon to his mother, and traveled to Poland with her financial assistance. He was later returned to the United States to face a first-degree murder charge.

Does anyone have information about Sarah’s life in the months before June 24, 2013, or recollections from that apartment building that could help clarify what happened?