The mystery continues.

The circumstances of how a Detroit house owned by Michigan state rep. Sherry Gay-Dagnogo's was mysteriously demolished remains unclear, but now the Detroit City Council is demanding answers.

Gay-Dagnogo is offering a $1,000 reward for information and told the Detroit City Council on Tuesday that she has spoken extensively with several agencies and authorities but gleaned no new information.

City Council President Brenda Jones submitted a detailed memo to Mayor Mike Duggan's administration Tuesday seeking answers. A copy of the memo was obtained by the Free Press.

Among several questions, Jones asked what steps are being taken to replace or compensate Gay-Dagnogo.

"I have sent a numerous amount of questions and many of them are the same questions that you just asked," Jones said. "I was very shocked to see this. … Hopefully, we will certainly soon get some answers as to what happened.”

Jones also questioned how many "questionable demolitions" have occurred since 2014, when Duggan first began his ambitious effort to remove residential blight across the city.

"My question is, how can any company, whether it's the city's contractors or any private entity, demolish a home without, one, the permission of a property owner and two, without following all the environmental protocols that are necessary and three ... no record at all," Gay-Dagnogo told council, adding she's reached out to utility companies for records regarding service shutoffs.

Gay-Dagnogo, who spoke during the council's public comment portion of the meeting, again asked what protocols are in place to prevent this from happening in the city and questioned whether any other individuals are dealing with a similar issue.

"How do we determine if there are others out there that this has happened to as well?" she said.

Read more: State rep's Detroit house mysteriously torn down — and officials don't know why

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City of Detroit Corporation Counsel Lawrence Garcia said there's not a lot the administration can say since the matter is under criminal investigation.

"It does look like it's something that shouldn't have happened," Garcia told council. "... While that investigation is ongoing ... city officials should remain largely silent on the matter in deference to that process."

Gay-Dagnogo also cautioned the City Council against moving too quickly to approve a $250 million bond proposal that Duggan submitted to council in September.

"I had already drafted, or had our legislative service bureau, draft a resolution on demolition, oddly enough, about a month ago to come to this body," she said. "And so I caution this body in moving too quickly in a demolition initiative that would cost the taxpayers more money."

Councilman James Tate, whose district includes the area where the house was demolished, pledged to get to the bottom of what happened.

"I think I read something in the article where you said you were glad it was you and not someone else ... but it shouldn't happen to anyone," Tate said, referencing the Free Press article.

"For no one to know anything is a little troubling, especially when we're talking about $250 million in bonds that they’re requesting for demo and here we are now. ... I don’t know if it was the city ... but that’s very, very troubling regardless of who did it."

Gay-Dagnogo told the Free Press last week that the demolition of the west-side house near the Brightmoor neighborhood should have never happened and likened it to a modern day whodunit.

"I have a lot of questions," Gay-Dagnogo said at the time, adding that she didn't live in the home but was in the process of renovating it. "There's no record at all at the city, from what they can find so far, that has anything about my house being torn down. They have no idea. It's a mystery. I'm just taken aback and trying to process this. How could this happen?"

The Free Press independently reviewed the city's data portal website and found no record of a planned or completed demolition of Gay-Dagnogo's property, at 14567 Minock St.

Detroit Building Authority Director Tyrone Clifton said in an earlier statement that the demolition "was not ordered, directed or funded by the city."

"There also was no permit pulled by any private party for demolition at this address," Clifton said. "At this time, we are actively investigating to see if we can help determine who was responsible."

The house next door to Gay-Dagnogo's,14561 Minock, was demolished July 11 by Adamo Group, Inc., which was paid $22,000 for the job, according to city records. The vacant house was torn down after it was damaged by a fire.

Adamo, which is one of the largest contractors in the city's demolition program, previously faced suspension for tearing down the wrong house in May 2018, the Free Press reported.

When asked whether Adamo had been cleared of any wrongdoing in this instance, mayoral spokesman John Roach did not directly answer the question but instead reiterated "it's a matter under investigation."

Adamo has torn down 3,397 houses for the city, totaling more than $56 million in work, according to records reviewed by the Free Press.

The company's attorney, Christian Hauser, said "Adamo had absolutely nothing to do with the demolition of the structure at 14567 Minock."

Kat Stafford is the Detroit government watchdog reporter for the Free Press, covering city issues and the community, and an Ida B. Wells investigative fellow with Type Investigations. Contact her at kstafford@freepress.com or 313-223-4759. m,