(Gresham, OR)  --  Gresham Police say they've arrested two more juveniles in connection to the deadly assault of 53-year-old Tod Barker last month in Gresham.  Barker was attacked September 27th on Northeast Roberts Avenue about a block from East Powell Boulevard, and he died from his injuries on October 9th.  Police had previously arrested a 16-year-old suspect, and now a 15-year-old and an 11-year-old are also in custody.  The 15- and 16-year-olds are in juvenile custody, while the 11-year-old has been released to his family.  Police say no additional arrests are expected.