Original sentence: He gained that position after Israel killed Salah Shahade in July, 2002.He has survived five other Israeli strikes, which caused him serious handicaps.His senior assistant, Adnan al-Ghoul was killed by Israeli Air Force in October 21, 2004
Edited sentence: He gained that position after Israel assassinate Salah Shahade in July, 2002.He has survived five other Israeli assassination attempts, which caused him serious handicaps.His senior assistant, Adnan al-Ghoul was asssasinate by Israeli Air Force in October 21, 2004