“We did,” Troy said. “So we ran a basic urine cytology test on what we had, and it does show high levels of albumin and renal epithelial cells. These are clear signs of damage somewhere in the kidneys, bladder, or urinary tract. Most of the time it signals what is called clear cell renal cell carcinoma. This man likely had a tumor in one or possibly both kidneys, but of course we can’t be sure, since we don’t have him to examine.”

“Would he have known he had cancer?” Ballard asked.

“He would have eventually,” Troy said. “But we can’t tell what he knew from what we have to go on now.”

“Would it have been fatal?” Ballard asked.

“If untreated, yes,” Troy said. “But if caught early, it can be treated. And if it is contained in only one kidney, the damaged organ can be removed. After all, we have two.”

“What about transplant?” Bosch asked.

“That, too,” Troy said. “But people are not really considered for organ transplant in cases of cancer unless it’s caught super early. Transplant is normally considered where the kidneys are damaged by disease other than cancer. I should say here that I’m not an expert on this by any means. Most of what I’m telling you I researched last night.”

“We really appreciate this, Darcy,” Ballard said.

“We girls have to stick together, Renée,” Troy said. “No offense, Harry.”

“None taken,” Bosch said. “What could be the cause of this cancer?”

“Oh, well, now you’re opening up a whole can of worms,” Troy said. “Again, we have an unknown subject and know nothing of his life and experiences. This could be a hereditary predisposition, or it could have been some sort of toxic exposure. I know you’re trying to identify this guy. I would say that it could be somebody who worked in an industry where there was prolonged exposure to carcinogens. I know that doesn’t really help you, but it’s the best I’ve got considering what we do know—which is not much.”

“Well, we know a lot more than we did before this call,” Ballard said. “You said there’s further work you can do on this?”

“Just a deeper dive into it—more analysis on the specimen we have,” Troy said. “We may be able to narrow down exactly what this person’s illness was. But this time it won’t be quick. I would need to find an oncology lab and send it out. I have to make some calls later but likely it will be County-USC.”

“Really appreciate it, Darcy,” Ballard said again.

“You got it,” Troy said.

All three said their goodbyes and disconnected. Ballard took a drink of coffee and then asked Bosch what he thought of the new information.