One day after being arraigned on six charges -- including first-degree murder -- in connection with the death of Odin Lloyd, former Patriots tight end 
Aaron Hernandez is now being investigated as a possible suspect in a July 2012 double killing that happened in Boston, according to 
WFXT-TV, a Fox affiliate in Boston.
On July 16, 2012, Boston police responded to a call just after 2 a.m. ET, according to the report. When authorities arrived, they found three people in a car at a traffic light who had all been shot -- two of them fatally.
The two men who were killed were sitting in the front seats. A third person shot was in the backseat and survived. There were also two other passengers who were unharmed. Witnesses said they saw a gray or silver SUV with Rhode Island license plates at the scene of the crime.
The 
Boston Globe has confirmed the Fox 25 report and also has new details on the investigation.
Via the 
Globe:
Investigators believe a fight broke out at Cure, a club in the South End, between two men and a group that included Hernandez.
The two men, Daniel Abreu and Safiro Furtado, friends who grew up in Cape Verde, left the club with three other men in a BMW sedan.
Abreu, who was driving, stopped at a traffic light on Shawmut Avenue, about to make a left onto Herald Street, when a silver or gray SUV with Rhode Island license plates pulled alongside the sedan. Someone from the SUV opened fire, killing Abreu, 29, and Furtado, 28.
The working theory, according to the 
Globe, is that Odin Lloyd -- the man Hernandez is charged with killing -- might have had information about Hernandez's role in the double slaying.
The silver SUV connected to the killings was never found.