Claim: Kukkohovi, a Finnish musician who has been a part of only one band called Sentenced, has been the guitar player for the hard rock band Solution 13 during his time with Sentenced, but he is also a back-up vocalist.
Evidence: Solution 13
Sentenced
KYPCK
Fiasco General 
Kukkohovi has been the guitar player for the hard rock band Solution 13 during his time with Sentenced. On live shows of the Doom metal band KYPCK, the crew is strengthened by Sami Kukkohovi, playing the second guitar. Currently Kukkohovi is playing with his new band Fiasco General.