This undated image released Thursday, May 23, 2013, by the British Ministry of Defence, shows Lee Rigby known as "Riggers" to his friends, who is identified by the MOD as the serving member of the armed forces who was attacked and killed by two men in the Woolwich area of London on Wednesday. He was a drummer with the 2nd Battalion The Royal Regiment of Fusiliers." (AP Photo/MOD)

This undated image released Thursday, May 23, 2013, by the British Ministry of Defence, shows Lee Rigby known as "Riggers" to his friends, who is identified by the MOD as the serving member of the armed forces who was attacked and killed by two men in the Woolwich area of London on Wednesday. He was a drummer with the 2nd Battalion The Royal Regiment of Fusiliers." (AP Photo/MOD)