Born in London in 1962, Horovitz immigrated to Israel in 1983, and he worked for the Post from 1983 to 1990. He then worked at The Jerusalem Report, where he was the editor from 1998 and publisher from 2001. In October 2004, Horovitz rejoined the Post in his current position.

Horovitz has also written from Israel for newspapers around the world, including The New York Times, Los Angeles Times, The Irish Times and The Independent (London). He has been a frequent interviewee on CNN, the BBC, NPR and other TV and radio stations.

Horovitz is the author of Israel in the Age of Terrorism (2004) and of The Thrills and Panic of a Life in Israel (2000). He edited and co-wrote The Jerusalem Report’s 1996 biography of Yitzhak Rabin, The Life and Legacy of Yitzhak Rabin, which won the U.S. National Jewish Book Award for Non-Fiction.

In 1995, he received the B'nai B'rith World Center award for journalism for his coverage of the 1994 AMIA bombing of the Jewish community center in Buenos Aires.

He performs his army reserve service in the Education Corps. He and his wife Lisa have three children.