Insufficient data available in the logs to determine who was actually responsible for this. @Nik735 is suspected, but there’s not enough here to even accuse him of this and so much time has passed I don’t really expect them to remember the details.
On the chance it was them though, I leave this warning:
Internal Affairs Agents may not murderbone or cause collateral damage beyond what is necessary to complete their objectives.
IAA is not the same as being a Syndicate Agent - you work for NT and are fully expected to keep damage to a minimum.