Jennifer O’Connor, 39, was killed on February 18, 2017, at a residence at 19 Farm Avenue in Peabody, Massachusetts. She and her boyfriend, 37-year-old Mark Greenlaw, were at a house later described as used for drug activity when violence broke out.

After the killings, the bodies were wrapped in plastic and rugs and moved to the basement. The house was then set on fire in an apparent attempt to destroy evidence; a woman fleeing the scene alerted authorities and the crime was discovered. Reports link the motive to the drug activity at the location.

Who knew Jennifer or had contact with the house on Farm Avenue in February 2017 and can shed light on what happened that night?