In a thousand ways. For example, if the guy showed that 24k is the ordinary price for the piece of software he claimed he wrote for the spoofer. Problem here is that a regular app would not cost 24k. Another way to show innocence is to show a whole roster of customers who all used the same identical software but for completely innocent and legal purposes. Then one could potentially go down the path of claiming the spoofer abused the software. There are a myriad of other ways to at least point to innocence. Yet none apply because this pos is guilty as fuck.
Dude... No. How, in your world do you "prove" innocence?