I suppose telling a lie is all that is needed to make a liar, but the question I'm asking is more aptly, what motivates a liar? There are pathological liars who have some compulsion to lie. Still yet, these are not the liars I seek to understand. The "Jimmy Kimmel Live" show does a segment called "Lie Witness News". He sends a reporter out to the streets or a venue for an event and the reporter asks questions to random people about fake persons or events. Without fail, person after person will lie on camera for no apparent reason other than to seem informed or connected with the bogus story. You can view an example at the following link, but please return here to see where I'm going with this.
https://www.youtube.com/watch?v=WxCKGACDHNg
We have all heard stories about jailhouse snitches or court witnesses recanting their stories after being rewarded for lying or coerced to do so. This type of lying has real victims and real consquences. There are known cases where prosecutors have entirely fabricated a case against someone and extorted false testimony from a friend, acquaintence, or family member, by threatening to charge them with a crime that carries heavy penalties if they do not cooperate. You don't have to take my word for this. There is plenty of researchable evidence to support my claim. Google it.
Now that I have established how simple it is to extract a lie from someone, imagine the consequences of multiple people lying to affect a specific outcome. Imagine that these people have no beef with the person they are destroying, but the financial compensation for cooperating is too great to pass up. You have certainly heard the expression, "everyone has their price". As I've clearly demonstrated, many people have NO price.
