The violence on Marlene Smith went from precision to frenzy,

对玛琳·史密斯的施暴从仔细发展成混乱
which points to someone with classic psychopathic traits,

所有这些都说明凶手是典型的精神错乱
quick to rage and quick to recover.

易怒又很快平复
He also appears to have insider knowledge

他似乎还知道这些被害家庭的
of the families in these cases,

内部信息
so we need to look for someone who is privy

所以我们得留意那些
to what went on behind those closed doors.

能接触到他人隐私的人
Emergency personnel were called to the Smith house

在史密斯两次企图自杀
after both suicide attempts and once to the tanner house

和泰纳一次处方药用药过量后
after the mother overdosed on prescription drugs.

都报了警应急人员去了她们家
That means first responders,

这说明可能是最早回应的人
child service workers, ambulance personnel.

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