 When his wife called Israeli police, they showed up after a delay of 4 hours and showed little interest in investigating the murder scene.Glock's family hired a private investigator who told Sari Nusseibeh that Israeli police had arrested a Palestinian American at Ben Gurion airport, who was linked to Hamas and a terrorist cell run by Adel Awadallah.The man reportedly confessed under interrogation that Awadallah had personally assassinated Glock.