A Murder in the Family

In 2001, the mysterious slaying of a wealthy businessman was the talk of the Hamptons. Now, the two grown children of the victim have their own story to tell.

  1. EAST HAMPTON, N.Y.

    FIVE minutes from the center of town, past the Maidstone Golf Course and a short distance from the tony houses owned by the art dealer Larry Gagosian and the entertainment manager Sandy Gallin, sits a seven-bedroom English-country-style manor house.

    It’s the kind of space people spend a lifetime working 60-hour weeks to acquire: two-plus perfect acres with ivy-covered walls, a gorgeous weeping willow on the front lawn and a pool in back.

    But today, the house looks somewhat run-down. The once-magnificent garden needs pruning. The front lawn facing Middle Lane is patchy. And the two people who own it have barely been home in more than a decade.

    What can they say? They just really don’t want to be there.

    “There are lots of great memories,” Greg Ammon, 22, said recently, as he drove up to the house in a black Chevy Tahoe with a visitor beside him and his twin sister, Alexa, in the back seat. “But they’re distorted by all the bad ones. I think ‘Am I really going to sleep in my father’s old bed?’ ”

    You see, 11 years ago something terrible happened here. The father of Greg and Alexa, R. Theodore Ammon, 52, a former investment banker at Kohlberg Kravis Roberts and the man from whom they inherited the house, was murdered. He was discovered by a colleague at KKR, Mark Angelson, who found him naked in his bed, bludgeoned to death. The police determined that the killer had used a stun gun on Mr. Ammon and had bashed his head some 30 times.

    It emerged that...