What does it mean to kill someone in cold blood?

The idiom “cold blood” means that you kill someone without a cruel or ruthless intent. For example, the killer came up to a man while he was sleeping and killed him in cold blood. This means that the killer killed the man in a calm manner.

~Good luck

the sentence that contains a restrictive clause is a.they decided to meet where the band was performing

explanation:

a restrictive clause is also known as an essential clause

samuel gompers was an extremely important person in the american labor movement, being him an employee all his life he devoted himself to fight for the rights of his pairs, he believed they all had the right to have better thing and that they all were working for them but the factory workers were greedy, ambitions and socialist people for him who he didn't have a good concept of.

he gave so many speeches and led so many strikes and protest to fight for equality which he considered employers didn't want to accept, so he had an absolutely negative opinion of them.