some who commits crimes for profit (especially one who obtains money by fraud or extortion) carry on illegal business activities involving crime
one who commits crimes (especially fraud, bribery, loansharking, extortion etc.) to aid in running a shady or illegal business
A racketeer is someone who makes money from illegal activities such as threatening people or selling worthless, immoral, or illegal goods or services. someone who earns money through crime and illegal activities