Los Angeles Times:

Man accused of killing wife is found dead, ending
15-year saga: 'We weren't able to get this done'

“I am very disappointed. I feel very badly that we weren’t able to get this done,” Deputy Dist. Atty. John Lewin said.

Lewin, a prosecutor specializing in circumstantial evidence, helped revive the investigation into Charlotte Cole’s death and worked on the case since around 2006.

“When you commit a crime like this, your legacy should be that you are branded and designated a killer,” Lewin said. “It bothers me that a jury was never able to come back with that determination.”
the story at the link