|Tom Clancy's Splinter Cell series information|
|Appearances||Splinter Cell: OP|
Gregory Jeinsen was an American German scientist who worked on the MRUUV Program. He defected from East Germany in 1971 to the United States of America developing weapons for them. Jeinsen became unsatisfied by how much the US military was paying him, and thus sold information regarding the MRUUV Program to China with the help of someone named 'Mr. Wong.'
On his trip to Hong Kong, China, Jeinsen went to a nightclub (run by the local triad, the Lucky Dragons) to pick up his final paycheck from the triad, but was instead killed. His body was then dumped in the water near one of the nearby harbors. His body was discovered by Police Sargent Kim Lee Wei some time after.