In my opinion the right amount of people see an execution. Family of the victims should be given first 'dibs' on the right to see the killer of their loved ones die.
Public executions belittle the object of justice. They are not there to entertain the masses, they are in place as a just and correct method of punishment.
Public hangings in the 1800's in London were the subject of many pamphlets by Charles Dickens. Because the man was famous, he was listened to and the start of the rot of British Justice began. We already have too many Hollywood 'actors' against CP and public executions would have them out in droves spouting their drivel, and we all know that there are folks who listen to them.
Let them stay behind closed doors. Let them be used as punishment and not entertainment. Let them bring peace to MVS and justice for the victims
While I certainly appreciate the notion that executions should be performed in public, however, it would be a logistical as well as a security nightmare to conduct an execution for public viewing.
Executions are customarily carried out in the United States in a room well inside of a prison, with only a handful to a dozen or so (depending upon the state) of legally-required witnesses present to watch the event, as well as the executee, the warden and the members of the execution team being present. All states allow members of the victim's family to witness the process. A few states (but not all) also allow members of the executee's family to witness the event. Out of security issues, the two families are generally kept separate throughout the whole process, including being escorted to the place of execution to being escorted from the facility at the conclusion of the event.
The reason why executions are conducted privately like this is out of an overabundance of caution as well as for the need that the process be carried out in as dignified, humane and professional a manner as possible; and also out of deference to the security needs of the institution in which the execution is being conducted.
For example, it would be next to impossible to conduct a public execution on the front steps of a state capitol building, or some other public venue. The security issues would be enormous.
This is why executions are always carried out in such a secluded manner.