Ajmal Kasab, under trial in Mumbai special court on Monday denied killing police officers Hemant Karkare, Ashok Kamte and Vijay Salasakar on the night of 26/11. There is no question of me shooting at them as I was not present on the site, he told the special court. They are police, they need an accused. So they framed me up, he said adding he was not present at CST, Cama Hospital or Girgaum Chowpati during Mumbai attack, because he was already in police custody when the terror attack took place.