after walking down to somersville place with ada, and after a couple of minutes, she just starts firing on a sleeping settler.
after searching the settler, she had no synth component.
i saw the guy testing the synth settler thing on youtube a couple months back, and after reloading a couple times to test the synths, they didn't have the components on them till they started acting funny.
all the settlers were asleep so i don't see why ada would have randomly fired at one.