Complex sentence: Phil survives, the arsonist is soon traced by the police and it isn't long before he implicates Barry, who is arrested trying to flee the country and subsequently imprisoned, although he is released a few months later.
Split into simpler sentences: Phil survives, the arsonist is soon traced by the police and it isn't long before he implicates Barry. Barry is arrested trying to flee the country and is subsequently imprisoned, although he is released a few months later.