Perhaps... if Tyrone and/or Tandy tell her... I mean Tandy swiped her access pass to Roxxon the night Tandy held that guy hostage, so if it comes back on her I imagine she'll want to know why it was taken.

Then again... Was Greg's body left at the scene, covered up by someone or what? No mention of him from O'Reilly or Tandy's mom. Does she just think he left? Either way his office would be suspicious with the fire.