DETROIT (AP) — A federal grand jury in Los Angeles is collecting proof in a legal investigation of Goodyear leisure motor vehicle tires that the government blames for crashes that killed 8 people and wounded dozens of other people. The grand jury has subpoenaed Arizona attorney David Kurtz searching for all files and deposition transcripts in a lawsuit he filed versus the Akron, Ohio, tire maker. A letter accompanying the Jan. 4 subpoena states it was issued in an “official prison investigation becoming executed by the Section of Transportation Place of work of Inspector General.” It also claims the Justice Department’s Client Protection Branch in Washington is involved, as well…