Data: MAVEN
Negative Trigger
occurred
Presence
on
Friday
,
May
16
,
1986
,
in
Cokeville
,
Wyoming
,
United
States
,
when
former
town
marshal
David
Young
,
43
,
and
his
wife
Doris
Young
,
47
,
took
Conquering
136
children
and
18
adults
hostage
at
Cokeville
Elementary
School
.