Combine first 7 ingredients in a medium bowl, and set salsa aside.
Peel shrimp, leaving tails on; devein. Toss shrimp and onion with oil in a large bowl, sprinkle with Jamaican Jerk Rub, and toss to coat. Grill shrimp and onion over medium-high heat (350° to 400°) 6 minutes, or just until shrimp turn pink, turning once. Chop onion and add to salsa mixture, stirring gently. Serve shrimp with salsa.
This was awesome!!! One of my fave recipes for shrimp and easy too!! If you want a HOTTER taste add the Scotch Bonnet pepper. NOT ALL jerk seasonings are flaming HOT! My family LOVES thi recipe and it's in my meal rotation file!