J's, Tyler was a seed I'm sure planted in your heart many years ago, on one of your mission trips. The Lord gave you a magnificent opportunity to see that seed grow, and when Tyler was just perfect in every way due to you & your family's care for him, the Lord, in His great grace decided he had become a beautiful child that needed to be in heaven.
Gifted with Tyler is a blessing most of us will never experience, and your ability to care for him was something no one else could of done. Remember, out of much sorry comes blessings beyond imagination, hold onto his smile, it will someday greet you again with everlasting joy, and you will hear Tyler speak, "Hi mom"