Yanky R. and Wolf and everybody else-
The same place where it says the stopped the mei hamarim says that murder became so common that they moved out of the lishkas hagazis so they wouldn’t be capable of meeting out the death penalty. The argument that the Jews are a holy people and commited no crimes is very naive and misinformed, one only has to skim through the navi to know that the Jewish people weren’t exactly perfect.
Ironically, this is one of the arguments that the Torah and the words of the Prophets were, at the very least, divinely mandated, for, as R’ Yaakov Weinberg says, if that wasn’t the case it would have had to have been a vicious anti-semite who wrote it. Take a look, from the moment the Jews leave Egypt and throughout the entire navi you rarely find a good word said about the Jewish people. Why would a Jew make this up?
Back to the topic though, it is clear that there was a lot of murder, adultery, cheating, lying etc. among the Jews as well.