Police conducted the welfare check on June 9 at the fifth-floor apartment located on Kennedy Boulevard. Responding officers found 91-year-old An Quan unresponsive.
He was taken to the hospital where he was pronounced dead on June 14.
The medical examiner determined Monday that his cause of death was complications associated with blunt force injuries and ruled his death a homicide.
Many of the residents of the building are senior citizens who live alone and this incident has them concerned.
Residents say Quan had relatives that stopped by on occasion but they had not seen him for many days before hearing about his murder.
The building does have security and cameras, and visitors have to go through two locked doors to gain access. Many are caretakers checking on the elderly.
Neighbors say they barely knew the victim but believe he used a wheelchair.
The fact that he died from a brutal beating has left many on edge.
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