Nervous mom watches her autistic five-year-old meet his baby brother for the first time

This is the emotional moment a nervous mom watches her autistic five-year-old meet his baby brother for the first time.

Tyler McDonald was non-verbal until he was three, has attention-deficit disorder and can have meltdowns if he doesn't stick to a strict routine.

When his mom Felicia Shelly, 27, fell pregnant she was worried Tyler would struggle to adapt to having his new sibling around.