She looked away from the television screen when she discovered she could no longer keep her emotions in check.
[Even though he had guessed we might be involved in this he can't do anything to me without evidence so I think it's better I feign ignorance until the end]
Tiffany thought she had come up with a perfect plan not knowing that she was walking into her own pit.
"Grandpa, I have no hand in what happened…,"
"Tiffany Noel, I will advise you to think before you speak. You know what happens if you lie when I have evidence against you and your friends," Mr Martinez interrupted coldly.
His words made the girls exchange puzzled glances.
[Even though Grandpa had carried out an investigation it would have taken him at least a day for him to discover our involvement in the incident… except someone who was around during our plan gave him the evidence]
