My first idea is microwave emitter at water molecule frequency. Since most life is full of water this would fry from the inside almost any living being.
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Anonymous2019-01-03 14:00
>>9 There are microwave weapons but they're are more anti-ordnance than anti-personnel.
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Anonymous2019-01-04 3:36
>>12 There's crowd control microwave weapons available to the police in USA already.