Who is Jerry Edgar from The Concrete Blonde and what is their importance?

Harry Bosch's former partner before Harry's demotion after the Norman Church shooting, Jerry is also a part-time real estate agent. Though the market has been a little soft for the past couple years, Jerry still dresses better than anyone else in the unit and manages to get through even the dirtiest crime scenes without a smudge. The market is soft of late, though, and that leaves Jerry ripe for the picking. After falling behind by two mortgage payments, he is more than vulnerable to Honey Chandler's offer of cash for information.