Еще раз he was first person to be killed he was first person was killed что верно? ?

He was (the) first person to be killed.

He was ( the ) first person WHO was killed.

Первый вариант верный

-Are you looking for permanent employment?
- Yes, but with free weekends. 
- Why are you interested in this kind of job?
- Well, I like meeting lots of people. Besides I have some experience in it.
- Why did you leave your last job?
- I lived a long way from the store that's why I quit. 
- Can you tell me what salary is?
- 750 dollars.
- That's OK with me.
- Here's an application form. You're just the sort of person we need.
- I'm very interested in this job.
- You start next week.
- Thank you very much. See you soon.

There is a theory which says that all the people of europe spoke one and the same language. At first they belonged to small groups of people. By and by these groups became bigger and went to live in new lands. In the new places those people stopped using some of the old words and so they forgot them. The structure of their sentences slowly changed too. They also make new words to speak about new things. After a long time the changes their language began to sound like a different one. That was how a new language was born. In just these ways grew from Old German.