No. They knew that these were Japanese who worked for Suzuki Motor Pakistan. There was no mistaken identity of Japanese for Chinese. They knew exactly who they were going after in Karachi. It was a business-related hit, and involving a Baloochi guy in this Karachi incident doesn't mean anything special. Officials are always quick to close these cases and never do further investigations. Blaming Indian-sponsored terrorist hands is always the most convenient way to close a case. Even then, they can not manage to arrest Indians who can be directly implicated in those cases. They consider everyone to be stupid.