VAN NUYS (CBSLA.com) — Officials are investigating the tagging of a $2.3 million Learjet at Van Nuys Airport. LAPD says the tagging incident is believed to have happened in the early morning hours Sunday. Authorities also believe the tagging incident was gang-related. Pictures of the plane were posted on Twitter Friday. The jet was reportedly vandalized with black spray paint. Several images — including the words “R.I.P.” and “Flame” — were painted on the plane’s left front. Several initials were also spray painted on the plane’s tail. Officials estimate damage to the plane to be about $100,000. Sources told the...