Skyline problem

Hey how are you guys... I just baught a Skyline and drove it for about an hour and I went over a little bump and the car stalled. When i put the key in the ignition the car wouldnt start and it would just make a weird noise. I took it to one mechanic named terry and he said that there is no compression in the engine... and now im scared i dont know what to do and where to take my car... I need to take it somewhere that people have knowledge on skylines and can check and figure out the problem.. how can the car lose compressoin that fast?? should i get it checked by another mechanic or continue suing the guy for selling me a car where he told me that there is 70,000 kms on it when really the engine was ****ed from before?? what you guys say?????

try to post in this section instead: http://forums.montrealracing.com/forumdisplay.php?f=50