Apparent murder-suicide under investigation in Bankers Hill

Posted at 4:04 PM, Sep 29, 2016
and last updated 2016-09-30 13:54:29-04

SAN DIEGO -- Police are investigating a murder-suicide in Bankers Hill. The investigation is centered at the Big Sister League, a non-profit organization that serves women, located at 115 Redwood Street. 

The San Diego Fire Department was dispatched to the scene around 3:14 p.m., where the reporting party told them they had been having a conversation with one of the victims through a locked door, when they heard a loud bang from inside the room. 

Fire personnel entered the building through an outside window to the room and saw a man and woman who were unresponsive.  Fire personnel then requested the assistance of the San Diego Police Department. 

At an afternoon news conference, police said that the the woman works at the non-profit and she and her boyfriend were found dead. Witnesses say they heard three gunshots, then one. According to police the man killed his girlfriend and then turned the gun on himself.
The female victim was identified by police Friday as 35-year-old Arnisha Rene Harris. The suspect, her boyfriend, was identified as 44-year-old Joseph Henry Robinson. Both were from San Diego. 

10News reporter Hannah Mullins  talked to a woman named Traci Banks who was trembling. Banks believes the woman who was murdered was a dear friend of hers. Her story gets more heartbreaking from there. Banks said she thinks it was her own brother who killed her friend. She said the two were dating.
"I'm hurt, I'm scared, I'm confused." Banks said. " know. And agan I just don't, I don't really know what's going on there."
Banks said despite loving her brother, she had warned her friend to protect herself from him.
The San Diego Police Homicide Unit responded and detectives are currently investigating the incident. Anyone with information related to this incident is encouraged to call the San Diego Police Department’s Homicide Unit at 619-531-2293 or Crime Stoppers at 888-580-8477.