>>6345895
>>6345919
https://www.history.com/news/archaeologists-find-new-clues-to-lost-colony-mystery
Now, two independent teams have found archaeological remains suggesting that at least some of the Roanoke colonists might have survived and split into two groups, each of which assimilated itself into a different Native American community. One team is excavating a site near Cape Creek on Hatteras Island, around 50 miles (80 kilometers) southeast of the Roanoke Island settlement, while the other is based on the mainland about 50 miles to the northwest of the Roanoke site.
I don't think they were massacred, no signs of massacre were found.
It seems to me that harsh environment and starvation forced them into assimilation into the local Native population (quite possible they assimilated into the Croatoans, of which the only evidence left behind was the tribes name carved into a tree).