BBM
You’re right, it is the “love of money” not just money, which can be used for good. This may have been said already and if so, apologies. But it’s the “root” of all evil, not the “route” and it’s from the Bible, cautioning against being “minded” or determined to be rich. The love of money is said to be the “root of all kinds of evil” not evil in general. And of course, Barry’s beliefs would no doubt cause him to ignore anything from the Bible anyway. In his case, “follow the money” may be the solution to this crime, so I can understand why the word “route” was used in the comments. It fits, even though it’s not the exact quote.
1 Timothy 6:9-10 9 But they that are minded to be rich fall into a temptation and a snare and many foolish and hurtful lusts, such as drown men in destruction and perdition [spiritual ruin]. 10 For the love of money is a root of all kinds of evil: which some reaching after have been led astray from the faith, and have pierced themselves through with many sorrows. (American Standard Version)