Strange article here on the recent LAX shooting...

[Ruvanal]

The article also listed that a similar incident occurred recently too. The populace want these people (police, firemen, etc.) to be prepared. So the do training exercises on a regular to semi-regular basis. Often in as real of a location as they can get permission access to. My work location has at times been used for these types of exercises during off hours and days so that emergency response teams can get real practice in an actual working environment setting.

Overall sounds more like coincidence and journalism fluff piece to me.