This individual's life journey commenced on 4-11-84 and has now spanned 40 years. Ko resides in a house located at 1030 Gona Ct, Walnut, CA 91789. The subject in question has been listed as a resident at 4 different places. The recorded addresses associated with this person are: 3650 Spruce St #628, Philadelphia, 3650 Spruce St #989, Philadelphia, PA 19104, and 1816 Desire Ave, Rowland Heights, CA 91748. Packages for Mr. Ko, the person were directed to Po Box 1346, Philadelphia, PA 19105-1346. This postal box had its last use in 2003. Chris Ko's email portfolio includes seven different addresses. At 1816 Desire Ave, Rowland Heights, CA 91748, USA, Jung Choi Yoon (in 2004) also lived with Seongjin Ko. There are people with the same name, Chris Ko, the individual, living in California, Nevada. There is another individual who is also a resident at the same address — Ms. Choi. Ms. Choi has reached the milestone of seventy years