Complex sentence: The Boss is informed by Shogo about the whereabouts of Jyunichi to betray him due his jealuosy of him because of his father favoring Jyunichi over him.
Split into simpler sentences: The Boss is informed by Shogo about the whereabouts of Jyunichi. Shogo does this due his jealuosy of him due to his father favoring Jyunichi over him.