According to the Warren Commission, the group responsible for investigating the assassination, he acted alone.
However, conspiracy theories still abound and a sizeable percent of the population does not believe he acted alone. Most of the Warren report has been released and in 2017 missing information that was withheld for national security reasons is to be released.
The answer is the magna carta
I think English arrival would greatly impact Native Americans. That's just because Native Americans do not know the intentions of the English. I also think when they did know the intentions and how English wanted to use their land to make homes for themselves it impacted the Native Americans because they took their land and now they have to move else where.
Hope this helps.
they needed workers so they use slave in other countries to get money instead care about employees