john waldron had filed a petition to have 14-year-old jamie silvonek returned to the juvenile facility where she was sent the day after the body of 54-year-old cheryl silvonek was discovered last month .
lehigh county district attorney jim martin said friday he will oppose the petition and waldron 's request to move the case to juvenile court , the morning call reported .
the teenager is charged as an adult with homicide that because of the age difference he believes the teen must have been under ` some type of duress or coercion .