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One of them, Islamic Jihad figure Luay Saadi, was detained again in September 1999 for providing logistical assistance to wanted terrorists in Samaria. He was released in January 2004 and, according to the data, proceeded to set up extensive terror infrastructure in the Samaria region, which resulted in the murder of 30 Israelis and left 300 more injured. He was killed in 2005.
Source:Finger in the dam - Israel Opinion, Ynetnews
According to the rules for comma, do we need a comma after conjunction and in the above text?
The commas around 'according to the data' function like brackets. I would use them.