तीक्ष्णस्थाने चान्ये वध्याः ॥ कZ_०५.१.२७ ॥
tīkṣṇasthāne cānye vadhyāḥ
And others should be executed at a ‘tīkṣṇa’ place (a hard/secure, severe site).
To reduce public visibility, prevent rescue/retaliation, and keep the operation tightly controlled.