The Church agreed to say that their members received a series of harassment and threats to kill after the assassination of former Japanese Prime Minister Abe.
The information has not been verified that the suspect's motivation related to his mother's contribution as well as the communication of the Church has made many members announce that they are damaged, president.
Mr. Tanaka said some of the unified Church members faced pressure to stop their jobs or witness their children unable to go to school because they were bullied.
Members in Japan were threatened to kill and receive calls with the content that 'I will kill you', Mr. Tanaka said.
The President of the Unified Church of Japanese Branch Tomihiro Tanaka in Tokyo on July 11.
Tetsuya Yamagami, the suspect assassinated former Japanese Prime Minister Shinzo Abe on July 8, stated his target on him because he thought that he was related to the religious organization that his mother joined and was made for her exhaustion.
The unified Church confirmed that Yamagami's mother joined in 1998 and in June 1999, she sold the inherited land and the house in Nara, where she lived with three children.
The suspect's relatives said she had donated 100 million yen (more than 724,000 USD) to the sect.
The assassination of Mr. Abe made the Japanese public more interested in the relationship of the Church united with the politicians of the country, including former Defense Minister Nobuo Kishi, Mr. Abe's younger brother.
Mr. Kishi has pledged to carefully consider his relationship with the Church after admitting that the members of the Church used to volunteer his campaign.
The unified Church is a famous Christian group with collective weddings, always trying to build relationships with conservative political parties around the world and have a method of making money that causes much controversy.
The method of making money of the Church unified was controversial and was the reason why Yamagami, the suspect assassinated Mr. Abe, raising hatred for a long time.
The security forces are thin, lack of vigilance, while the crowd can come too close are the gaps that make the gunmen close to shoot Mr. Shinzo Abe.