If she did all that stuff to him, why did he go after the lawyers?I'm going to both agree and disagree with you here.
His reaction was unusually harsh for a divorcee statistically.
However, his situation (certainly in his own mind) was also unusual.
She did not just divorce him:
(1) She stole 3 million dollars.
(2) THEN announced her intent to divorce.
(3) Then fought and got main custody of his son.
(4) Then sued and got support payments.
(5) Then sued and had the payments increased.
(6) Then harrassed her ex-husband's new partner and tried to frame her
and slander her for cheating.
(7) Then poisoned his son against him, and probably conspired with
the son to rip him off for his money.
(8) Then she attempted to leave the country with his son.
Many would consider these circumstances also quite extreme,
even for a bitter divorce.
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After a long bitter drawn out battle for money and custody,
he took some violent counteraction.
(1) Its not clear that he attempted to kill.
The explosive charges were small and possibly designed to maim
or blind rather than kill.
(2) Its not at all clear that his actions constitute murder.
They can also be construed as self-defence and defence of property and family.
The unfortunate result of this final blowup (no pun intended),
is that yes, he is already alienated from his son,
and now has likely lost him as a friend and family member in this lifetime.
I doubt however that it was his original intent,
and the son may have contributed to the situation
by siding with the gold-digging mom.
I strongly suspect that the son's loyalty was also easily influenced
by the amount of money the woman took off with.
The whole affair looks very seedy on all sides.