Jon Gosselin says he has grounds to sue Kate for defamation and libel

Page Six reports Jon Gosselin told Entertainment Tonight he believes he has grounds to sue Kate Gosselin for defamation and libel over her comments about their son Collin. He also raised the possibility of criminal charges. People reports Jon responded to critics who say he should have intervened sooner, saying he was working two jobs and fighting for custody. Kate has denied Collin's abuse allegations, Page Six reports.