VIDEO - A Palestinian man arrested in the Gaza Strip last week by the Islamic Jihad on suspicion of collaborating with Israel died of his wounds in prison Wednesday. The man, Fadel Dahamsh, was captured by Jihad members shortly after he was seen climbing the border fence from the Israeli side. A video released by the Islamic Jihad and broadcast by Ynet last week showed Dahamsh returning to the Strip after an IDF jeep dropped him off near the fence. Islamic Jihad members filmed Dahamsh taking off the IDF uniform he was wearing and slipping into civilian clothes. Immediately after he entered the Palestinian territory, he was arrested by Jihad members, who questioned him. According to the Jihad, Dahamsh confessed to collaborating with the IDF and said that he had worked to smuggle stolen cars into the Strip, some of which were used to assassinate Palestinians wanted by Israel. Islamic Jihad officials said that Dahamsh was suspected of planting the car bomb which exploded in the Zeitun neighborhood and killed one of the organization's prominent commanders, Ra'ed Fanuna. Two days after being captured, Dahamsh was handed to Hamas' special security force, which is now in charge of security in the Strip. He was questioned for several days, and on Wednesday his body was transferred to the Shifa Hospital in Gaza. A Palestinian source told Ynet that the cause of death was suicide, but no medical or legal sources could be found in the Strip to confirm the report.