《资治通鉴·唐纪·唐纪二》
李密于是捉住使者，把他杀了。
密因执使者，斩之。
Li Mi thus caught the messenger and killed him.
<s>[INST] Kindly elucidate the central themes in this passage in English: 密因执使者，斩之。 [/INST] Li Mi thus caught the messenger and killed him.</s>
Kindly elucidate the central themes in this passage in English: 密因执使者，斩之。
user
Li Mi thus caught the messenger and killed him.
assistant