(Portland, OR)  --  A convicted serial burglar is back behind bars after allegedly breaking into a pizza joint in northeast Portland.  Authorities say 63-year-old Melvin Tillman appeared in court Tuesday in connection to the break-in and burglary at Pizza Schmizza Pub and Grub on Northeast Broadway.  Police say Tillman was on release pending trial for a separate series of break-ins in northwest Portland in April when he broke into the pizza place and stole an empty cash register.