Is Andrew Gobea still alive the boy with ADA gene problem?

As of my last knowledge update in October 2023, Andrew Gobea, who was known for his battle with a severe form of adenosine deaminase deficiency (ADA) and gained attention for his story, passed away in 2015. His condition was a rare genetic disorder that severely affected his immune system. Please verify with up-to-date sources for the most current information.