Press conference in the wake of Plymouth mass shootings

The transcript discusses the investigation of a tragic incident involving multiple fatalities. It explores the relationships between the individuals involved, with a focus on confirming familial ties. The speaker clarifies that while some individuals were known to each other, formal relationships are not confirmed. The investigation remains open-minded, considering all possibilities, including potential terrorism, though currently believed to be a domestic incident.

What is the speaker's stance on confirming familial relationships at the time of the statement?

What tragic circumstances are mentioned regarding the individuals involved?