According to the article, he was not arrested, he was detained. Big difference.
Yes - and apparently only to determine if he was legally carrying or not. As far as the job offer, are people here saying that a company cannot hire whoever they want?
I just don’t see any difference
ar·rest (-rst)
v. ar·rest·ed, ar·rest·ing, ar·rests
v.tr.
1. To stop; check: a brake that automatically arrests motion; arrested the growth of the tumor.
2. To seize and hold under the authority of law.
3. To capture and hold briefly (the attention, for example); engage.
v.intr.
To undergo cardiac arrest: The patient arrested en route to the hospital.
n.
1.
a. The act of detaining in legal custody: the arrest of a criminal suspect.
b. The state of being so detained: a criminal under arrest.
2. A device for stopping motion, especially of a moving part.
3. The act of stopping or the condition of being stopped.