Roseburg’s newest city councilor said after his first meeting Monday that he took the position because he loves the city and wants to help it prosper. Marty Katz, 63, was sworn in to fill the Ward 2 position formerly held by Steve Tuchscherer. Katz was the only person who filed to run for the position in November’s election, and councilors voted unanimously Monday to ask him to step into the job early. “I have a lot to learn, and I look forward to the opportunities and challenges,” Katz said. He said he was grateful his first meeting didn’t involve anything …