Aguero was found lying on the sidewalk at around 7:50 a.m. Sunday.
Detectives have released a series of surveillance photographs from the laundry and are asking for help from the public identifying them.
Tuesday, they brought two men in for questioning, but noone has been charged
Anyone with information about the murder is asked to call Crimestoppers at (919) 683-1200, Sgt. Jack Cates at (919) 560-4440 ext. 262, or Inv. Penny Stewart at (919) 560-4440 ext. 244.