According to media reports, Tiwari's wife claimed that since a few days before his death, he had complained to her that an unknown dark power was trying to pull him towards it and that he was finding it very difficult to resist. His parents, though, said that Tiwari was not suffering from any kind of depression that could have led him to commit suicide.
An inquest into the unnatural death has been initiated by the Delhi police. The preliminary autopsy report confirms that he committed suicide but police have yet to ascertain the reason that prompted him to take the extreme step.
How superstitious is India media otherwise prancing around as rationale. Paranormal guys death being linked to ghosts and evil spirits.— Shankara (@Sshankara) 13 July 2016
The Indian Paranormal Society website says that Gaurav Tiwari, a pilot by training, had visited over 6,000 `haunted' locations and investigated hauntings, 'UFO abductions' and 'mysterious creatures.'
According to his Twitter profile, Tiwari was also a "Spiritual/Life/Relationship Counselor/Hypnotist, as well as a Paranormal/UFO Researcher."
Tiwari, along with his team of paranormal investigators, claimed they found ghosts using science. Equipment they claim to have used include digital EMF meters to detect electromagnetic fields, laser IR thermometers to gauge sudden temperature changes (spirits take energy from surroundings and this can lead to a drop or rise in immediate conditions) and EVP recorders which record disembodied voices. Tiwari also featured in a number of Indian TV shows revolving around paranormal activities.