How come it's been so expensive so far?

>Our local serial murderer has been found guilty of 6 (so far) of 26 murders.
>
>As an aside, costs to try him (so far) are estimated at ~$100 - 110 million. By the time the 2nd trial for the other 20 women, plus appeals, are done it may exceed the current record-holder, the Air India bombing at ~$130 million.
>
>Milosevic's trial may have cost more, est. $120 - 180 million: http://www.lewrockwell.com/orig6/laughland3.html
>
>I wonder who the "world record holder" is?
>
>At this rate, someone should invent a brain memory-scanner to determine if an accused actually committed a given crime ( <-- only half joking )