His death also means Cassie and Jenny sustained a big loss. For Jenny, she lost her husband (even if they were separated) and father of her child, and Cassie seemed to be falling for him. At the very least, Cassie cared deeply for him. Whether this lights a fire under them or makes them want to back off from the case remains to be seen, but after seeing them in the premiere, my money is on them doubling their efforts. He was also arguably a buffer between them, even if he was also the source of their conflict in the first place.