But the police department has not forgotten Sheila , who was 12 , and Katherine , who was 10 , the day their older brother , Jay Lyon , saw them last . NEW : Police ask public for information about convicted sex offender Lloyd Lee Welch Jr. Sheila Lyon was 12 , her sister Katherine 10 , when they vanished . Their brother , Jay Lyon , saw them eating pizza that day . He told police he had been at a party and left with the girls to go home.
NEW : Police ask public for information about convicted sex offender Lloyd Lee Welch Jr. Sheila Lyon was 12 , her sister Katherine 10 , when they vanished . Their brother , Jay Lyon , saw them eating pizza that day . He told police he had been at a party and left with the girls to go home.