Name: Roberta A. Rybinski.
Died: March 8, 2016.
Age at death: 51.
Cause of death: Murder.
Location: Tonawanda, New York, USA.
Disability: Bipolar disorder.
Roberta, who was living on disability payments due to her bipolar disorder, was abused by her boyfriend. At one point she was able to leave him and get a protection order, but eventually she moved back into his apartment–an apartment to which he held the only key.
Roberta was stabbed to death by her boyfriend.
Perpetrator: John M. Avent (Boyfriend), convicted of murder.