George Weller, the 90-year-old man who drove his car through the Wednesday Santa Monica Farmers' Market in 2003, killing 10 people and injuring 63 others, was sentenced yesterday here in Los Angeles. He was convicted of 10 felony counts of vehicular manslaughter. Although the judge clearly felt that Mr. Weller ought to serve time for his crime, due to his advanced age and serious illness, he was sentenced to 5 years probation. Weller was not present in the courtroom for the sentencing, nor has ever offered any sort of apology to the victim's families. "I will never understand his stubborn and bullheaded refusal to accept responsibility to put this matter to rest for everyone, including himself," the judge said yesterday. Weller's attorney, however, said that his client was a "prisoner of his own remorse and his own grief."