1, Dai, male, studied as an information consulting practitioner. In 2003, I came to Shanghai from Jiangsu to study with my teacher. In 2003, after seeing a private detective called "Little Three Killer" by the media on TV programs, Dai came to Shanghai from Jiangsu alone to study as a teacher.
2. Wear a high-powered telescope, a telephoto camera with wifi function, a small sports camera, etc. , and equipped with motorcycles, vans, BMW and other means of transportation.