Cast of The Taking Of Pelham 123 promoted movie without him
Jett died at the age of 16 after having a seizure at the family’s home in the Bahamas in January.
‘They stepped up without hesitation to help promote this wonderful film,’ he says in a letter posted on his website.
‘Their unselfish efforts have allowed my family the additional time to reconcile our loss.’
In the movie, John plays a man who hijacks a New York subway, becoming the ‘ultimate evil mastermind’.
The Taking Of Pelham 123 is released in UK cinemas on 24 July.