the family of an illinois man says he is scared his son 's convicted killer , kamron t. taylor -lrb- right -rrb- will go after him after his daring prison break .
in a courthouse outburst in february , taylor threatened the family minutes after hearing the guilty verdict .
as the manhunt continues , nelson williams sr. of kankakee , says he is worried that 23-year-old kamron taylor , the man convicted of his son nelson jr 's murder .