If Harnessed Dragon is killed in response to its "Kill an enemy unit" trigger, does the trigger still resolve?

Ruling: The "Kill an enemy unit" trigger will resolve regardless of whether Harnessed Dragon is killed in response.

Sequence:

• Harnessed Dragon is played and added to chain
• As a permanent, it resolves immediately
• "Kill an enemy unit" effect goes on the chain
• Other players can react
• Even if Harnessed Dragon is killed by a reaction, the trigger still resolves