Why are jerky pet treats making them sick? Has your pet died as a result of jerky treats?

Rex was a rescue dog. This is his last day with us.

While serving overseas, we got our first German Shepherd, Rex. He was an older, gentle dog. We brought him home to the states with us. He filled our lives and hearts with happiness. 

We gave him jerky treats made in China then he started showing signs of pain. It broke our hearts to see him suffering as his body shut down. The vet said we needed to be unselfish and let him go. I held him and told him to go to sleep then carried him home and buried him.