Diagnosis Murder S08E08 - All Dressed Up and Nowhere to Die

When two fashion designers hold their wedding on the catwalk before a show, things turn explosive when a bomb goes off and ultimately kills the groom. Through the course of Steve and Mark's investigation, they soon discover that the reason why the groom was targeted had to do with his planning on turning state's evidence in a drug kingpin's upcoming trial and that one of his models might know more than she's letting on.