Xiōngshǒu wèi le shārénmièkǒu, yòu liányè qián huí xiànchǎng.
To silence the witness, the killer sneaked back to the scene that same night.
Guānjiàn zhèngrén bèi bǎohù qǐlái, yǐ fáng yǒu rén shārénmièkǒu.
The key witness was placed under protection in case someone tried to kill them to bury the evidence.
