Detective Teresa Van Galder, the homicide detective handling the case for the Mesa City Police Department, confirmed that the investigation is ongoing but declined to provide additional details.
"As this is an active investigation, I cannot go into any details at this time regarding the case," Van Galder said. The Free Beacon provided a recording of its interview last month with Wanda Lenius.
[…]
Though that report and others suggested the couple mindlessly followed the president's medical advice to disastrous results, friends of Gary Lenius told the Free Beacon they were skeptical he would knowingly ingest fish tank treatment.
Rather, they described Lenius as a levelheaded retired engineer and recounted a troubled marital relationship that included a previous domestic assault charge against his wife, of which she was ultimately found not guilty. The Free Beacon also reported that Wanda Lenius was a Democratic donor whose most recent contribution went to a "pro-science" super PAC.

"What bothers me about this is that Gary was a very intelligent man, a retired [mechanical] engineer who designed systems for John Deere in Waterloo, Iowa, and I really can't see the scenario where Gary would say, ‘Yes, please, I would love to drink some of that Koi fish tank cleaner,'" one of his close friends told the Free Beacon. "It just doesn't make any sense."