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Input: Documents released by the New Zealand Security Intelligence Service (SIS) show the then  17-year-old Christopher Lewis  shot at the Queen as  she  got out of  her  vehicle on the way to a science fair on Oct. 14 during  her  eight-day tour of the Commonwealth nation.
 âLewis  did indeed originally intend to assassinate the Queen  however did not have a suitable vantage point from which to fire  nor a sufficiently high-powered rifle for the range from the target â said a 1997 SIS memo  that was declassified in February and sent to Reuters on Thursday.
 Lewis   who intelligence documents described as a âseverely disturbedâ youth  was not charged with attempted murder or treason  adding to claims the incident was downplayed to prevent embarrassment to a country hosting a royal visit.
According to intelligence documents  police kept a close eye on  Lewis  during a 1986 visit by the Queen to New Zealand  fearing that  he  was still a risk.
More than a decade after the incident   Lewis  was charged with the brutal murder of an Auckland mother and the abduction of  her  baby daughter  who was later dropped at a nearby church.
According to multiple news reports at the time   Lewis  electrocuted  himself  while in prison in 1997 awaiting the murder trial.  He  denied the murder charge in a suicide note.

New Zealand teenager tried to assassinate Queen Elizabeth in 1981: intelligence agency