While there are still plenty of questions about whether the city did enough to protect a 6-year-old boy from child abuse, Mayor Bill de Blasio is continuing not to provide details about the boy's death last week, saying the matter is under investigation. NY1's Courtney Gross filed the following report.

Zymere Perkins lost his life last month after being beaten in a Harlem apartment, allegedly by his mother's boyfriend. 

There were five reported cases of child abuse sent to the city's Administration for Children's Services during Zymere's short life. 

Mayor Bill de Blasio is not ready to talk about it.

"There is an investigation going on that cannot be undermined," he said.

That was not the case two years ago after a babysitter killed a 4-year-old boy. De Blasio was out with a preliminary review of the case nine days later.

"The report included a review of ACS case records and family court proceedings," he said.

Ten years ago, when a 7-year-old girl, Nixzmary Brown, was beaten to death and found in a Brooklyn apartment, the mayor at the time was discussing some of the details of the case two days later. 

"It does not look like the case workers tried to get the warrant, or they certainly did not try hard enough," then-Mayor Michael Bloomberg siad.

Earlier this week, de Blasio said he could not discuss the case because of the district attorney's investigation. When NY1 checked in with the district attorney's office, a spokesperson told us, "We have requested that those agencies refrain at this stage from conducting witness interviews of individuals who may have information bearing on Zymere's death." But the DA's office said nothing about preventing the adminsitration from releasing details about the case. 

When NY1asked what was different about the Perkins case versus Nixzmary or Myls, the mayor said this case was more complicated. 

"This is a very different case because the DA did not put restrictions to interview our own people," he said.

But there is some information the city is willing to release: the number of children who have died who were "known" to the city's child welfare agency has gone up in the past fiscal year. 

The mayor has promised to release this information. It's just a matter of when.