Yes, the taxpayers. You see, when laws are broken the taxes hard working Americans pay are given in salaries to these people who call themselves District Attorneys. The DA in turn spends more money to prosecute criminals in a court of law. If the criminals are found guilty, additional tax dollars are used to keep the criminals in prison. As for the school district, taxpayers pay for that too. They pay their taxes with an expectation that the dollars will used wisely. That makes it all the more important that the individuals involved in this crime pay with ruined lives. It serves as message to others to never abuse their positions of trust and authority when working in government positions funded with tax dollars.
Is that simple enough for you?