Jules Bianchi's father has said he "cries every day" for his lost son as he stepped up the legal fight against Formula One a year on from the Frenchman's death. Philippe Bianchi, who announced in May the family were suing their son's former team, Marussia, the sport's governing body and Bernie Ecclestone's Formula One Management, said he could not accept that the 25-year-old was responsible for the accident which cost his life.Bianchi crashed into a recovery tractor in the rain-soaked Japanese Grand Prix in October 2014, losing a fight to recover a year ago.A 396-page report found the Marussia driver died because he "failed to slow sufficiently" under double yellow flags.story_article_left1But his father, Philippe, told CNN: "Jules's crash is not a crash of Formula One. It's a crash that you can have on the road here but not in a Formula One race. When some people say it's his responsibility, it's not possible."I want the memory of Jules to be right. It's not possible for me and his mother to see people that say it was Jules' responsibility. My motivation is just to make justice for Jules. I know that Jules is here and when he listens that when some people say that it's his responsibility, it's not possible."Bianchi has also said the sport's drivers are afraid to speak out on the Bianchi accident.But Jackie Stewart, the three-time champion and one of the biggest campaigners for safety in Formula One, said the family should move on."It will be very difficult to justify a case fully against the sport or the racetrack owner, or Formula One because he should have been going slower," Stewart said.The young Ferrari driver's tragic death, the first in injuries sustained at a race weekend since Ayrton Senna in 1994, left the Italian team without a natural replacement for Kimi Raikkonen, forcing the team to stick with the Finn.But Ferrari have bigger problems than drivers at the moment. The team have not won a race in 2016 and are facing being caught by Red Bull in the constructors' championship.Maurizio Arrivabene, their team principal, said the team "cannot fail" at the next race in Hungary, the 11th of the season...