The article text provided does not include the report’s main body, so the circumstances of the deaths and the possible suspect cannot be independently summarised. From the headline alone, police have reportedly not ruled out an unexpected person in an investigation involving the deaths of four children, their mother and grandmother.

No verified details are available in the supplied text about where or when the incident occurred, the identities of those involved, the suspected cause of death, or what evidence has led investigators to consider another suspect. The headline describes the case as a murder-suicide, but that characterisation cannot be assessed without the missing article content.