From The Guardian:

A former Guantanamo Bay inmate who was incarcerated there between 2002 and 2009 was killed in a US airstrike in Yemen. He was not considered a high-value target.

Also killed in the same airstrike in Abyan governorate was Usayd al-Adnani who was considered to be an explosives expert.

These airstrikes have not been conducted based on intelligence gathered from the January raid.