A politician who tend to use an event like a mass shooting to mourn the victims and celebrate their lives while avoiding advancing any changes to gun laws is using the kind of epideictic rhetoric.
So here one of the three branches or species of rhetoric are said to have been described in Aristotle's Rhetoric. Thus, in order to be used to praise or blame during ceremonies, this is called epideictic oratory.
However, here the purpose of the epideictic rhetoric, which is said to focus on the present, is used in order to emphasize and characterize what makes a person or thing outstanding. So, here an example of a politician is given.
Hence, epideictic rhetoric is said to be demonstrated by what happens after a person has passed away.
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