At the 2004 Skate America , he placed fourth in the short and first in the free skate , obtaining the silver medal behind Brian Joubert and ahead of Michael Weiss .
Jahnke competed at multiple Grand Prix competitions .
At the 2004 Skate America , Jahnke placed fourth in the short and first in the free skate , obtaining the silver medal behind Brian Joubert and ahead of Michael Weiss .
Jahnke competed at multiple Grand Prix competitions .