Most brothers are protective of their little sisters, but Beckham O'Neill takes his protective role extra serious. 

He is on video making a plea for people to help his sister Eliza, who has Sanfilippo syndrome type A.  The disease is rare and terminal, but as the video says, Beckham doesn't know that, and doesn't have to, because there is gene therapy that has worked in mice.  The issue is that a clinical trial in humans will cost $2 million.  The video is trying to encourage people to donate, and I have to imagine this little guy is going to have a big impact. 

If you have a minute, take a look at this video, it is so cute!

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