By LISA LEFF, Associated Press Writer Thu Nov 17,10:30 PM ETTests: Skull Fragments May Be Beethoven's SAN FRANCISCO - A California businessman said Thursday that skull fragments that once belonged to his great-great-uncle in 19th century Europe very likely came from German composer Ludwig van Beethoven. Paul Kaufmann made the announcement at the Center for Beethoven Studies at San Jose State University, which helped coordinate forensic testing aimed at authenticating the fragments and determining what killed Beethoven at age 56. The center already has a lock of the composer's hair, which showed he suffered from lead poisoning among other ailments...