Anonymous B joined in and replied with this 1 year ago, 10 minutes later[^][v]#1,309,608
A cut and paste from wikipedia:
Yamagami told investigators that his motive had been personal rather than political.[55][56][57][58] After his mother joined the Unification Church around 1991 to 1998,[a][26] she had given the church about 100 million yen (US$720,000), a parcel of land she had inherited from her father, and the house where she lived with her three children; she subsequently declared bankruptcy in 2002.[60][61] She had continued donating to the church following the bankruptcy.[62] Yamagami's uncle recalled being contacted by Yamagami and his siblings to complain that they had no food at home, electric bills and house rent were often overdue, prompting the uncle to deliver meals and money for living expenses.[28][29]
Yamagami blamed the Unification Church for his family's financial problems and held a grudge against the group.[63][64] Researching the church's connections to Abe in the months before the attack, he believed the former prime minister and his maternal grandfather, former prime minister Nobusuke Kishi, spread the church's influence in Japan.[65]
Holy carp, his mom donated the family wealth until they went broke... I'd probably snap too.