SUTTON, Mass. – Following the death of a 4-year-old girl with autism in Sutton, activist Sheletta Brundidge is donating what she calls life-saving door locks in town this weekend.

Three of Brundidge's four kids have autism.

She said children on the spectrum tend to wander away and are often drawn to water, which can end with tragic results.

This Sunday, the Minnesota woman will be in Sutton to donate keyless electronic interior combination locks.

“They were game-changer,” Brundidge said about the locks. “There's a six to ten digit combination code on there and it has kept him safe. Our family was always, before we got these locks, one moment away from having an Amber Alert, literally for years. In order for me to do the dishes, I would make my son hold me from the back, that way I know he was near me because otherwise, he’s leaving, he’s running. And so, you know, people who don't have special needs kids, they think that we're just not watching our kids, right? They think that we are just being bad parents. But that's not the case. We're doing everything we can to keep our kids safe. But it's just exhausting."

Last month, a 4-year-old girl wandered from her Sutton home and drowned in a neighbor's pool.

The free lock event is 10 a.m. Sunday at the Sutton Police Department, and will also include free ice cream, face painting and balloon animals.

Amazon also donated 50 additional locks to the event, commending Sutton first responders and Brundidge for the work they're doing.