Edward Mars

Fuori Dall'Isola
Edward Mars arrested Kate for the murder of her biological father, Wayne, in a bus station while she attempted to flee to Tallahassee. While he transported her by car to her arraignment in Iowa, a black horse caused him to veer off the road, allowing Kate to escape from Mars' custody, and making recapturing her a very personal matter to Mars. ("What Kate Did")

He knew that Kate felt guilty about her mother, so he set up a 24-hour stake out around Diane for when Kate would inevitably show up. Cassidy revealed the extent of the stake out when she dressed up as a Kate appearing Bible saleswoman at Diane's front door and was tackled by several agents. Although two agents were sitting in the diner where Diane worked, Cassidy helped Kate by spilling food on her mother so she would find Kate away from the agents in the bathroom. ("Left Behind")

In the months that followed, Kate began a pattern of calling Mars on holy days, taunting him. After she tried to visit her dying mother, the police were called to the hospital to arrest Kate, who was on the run. Kate left behind her plane, which was an item shared with her childhood sweetheart Tom Brennan, who was killed during Kate's escape from the hospital's parking lot. ("Born to Run")

After marrying Kevin Callis, Kate called Mars again to tell him she didn't want to run anymore. Sensing that Kate had fallen in love with a man, Mars offered to stop chasing Kate if she could really settle down, but fearing Kevin, a police officer, would eventually discover her identity, Kate fled her husband and the chase continued. ("I Do")

Kate would later call Mars and he told her that her plane was in a safety deposit box in New Mexico; Kate executed a bank robbery to recover it. ("Whatever the Case May Be")

Mars at last caught up with Kate in Australia, arresting her and arranging to bring her to the United States to stand trial. Mars was seated in seat 27G on Flight 815 next to Kate, whom he was escorting. He carried a Halliburton suitcase with four guns and ammo in it, and had a fifth gun in an ankle holster. During the turbulence that caused the crash, Mars was hit on the head by falling luggage, knocking him out and causing his head to bleed. While he was unconscious, Kate stole his keys to remove her handcuffs, and then placed the oxygen mask on his face. ("Tabula Rasa")

Sull'Isola
He was severely injured in the crash after being impaled by a piece of metal. Sawyer thought he was dead and stole his badge and pistol. Jack attempted to keep him alive as long as possible so that he could go to the hospital when they were rescued. On the first night Jack tends him, while Kate worries and tells Jack she was sitting next to him on the plane. ("Pilot, Part 1")

The next day, Rose asked Jack to look at him. Later Hurley helps Jack tend Edward, while Jack removes the piece of metal Hurley faints of the sight of blood. As Jack stitches up the wound, the pain causes Edward to regain consciousness. Appearing disgruntled, he asks, "Where is she?" ("Pilot, Part 2")

When Edward regained consciousness, he told Jack that "She (Kate) is dangerous. Don't let her get to you. She is not to be trusted. She would do anything to get away." When Kate went into the tent to check on him, Edward attempted to strangle her. Later, Sawyer attempted to end his misery by shooting him, but missed his heart and perforated his lung, putting him in more pain. Jack then euthanized him. ("Tabula Rasa")

Later, in "Whatever the Case May Be", his body was dug up by Kate and Jack to retrieve the keys to the Halliburton case.

Fonte Lostpedia

in effetti non ho mai capito perchè si fosse preso così a cuore la cattura di Kate...dopo tanti anni io avrei lasciato perdere...mah...