Police officers are understood to be at a number of properties in Writtle belonging to members of Peter Reeve's family.
The media have been asked not to approach them as they are described as distressed and possible witnesses.
More top news
Ratings agency Moody's said victory for Brexit would "herald a prolonged period of uncertainty" for the UK.
Five people were taken to hospital after walking on coals at a Tony Robbins seminar called 'Unleash the Power Within'.
An emergency meeting will be held today to discuss the Scottish government's next steps following the UK's decision to leave the EU.