ATLANTA (AP) - An Atlanta-based advocacy group, All About Developmental Disabilities, is launching a campaign aimed at changing part of Georgia's death penalty law.

The group says Georgia requires a person to prove intellectual disability beyond a reasonable doubt to avoid a death sentence. The group says Georgia is the only state that requires proof at that level. Most states that impose the death penalty have a lower threshold for defendants to prove they are mentally disabled, and some states don't set standards at all.

All About Developmental Disabilities says it plans to distribute thousands of buttons, hold informal gatherings with legislators, and use social media in a campaign that will run through Oct. 15.

The organization provides support services, advocacy and training to families living with developmental disabilities.

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