Flavor Flav was arrested in Las Vegas the other night for attacking his fiance and her 17-year-old son [click here if you missed that] and now we know why...
From TMZ
According to the Vegas police report, the argument between the rapper and his 39-year-old fiancee started over accusations Flav had cheated on her -- and quickly turned violent, with Flav grabbing his fiancee and throwing her to the ground twice.
According to the report, Flav's fiancee claims her earring was ripped out during the altercation ... and her 17-year-old son jumped in to defend her.
At that point, the report continues, Flav grabbed two knives and chased her son around the house -- eventually kicking down a locked door to get to him. Flav then allegedly threatened to kill him.
According to the report, Flav denied chasing the teenager with the knives. He also denied the whole death threat thing.
