I forgot, the last verse is not included in Charlie Moore's adaptation. It goes: With his heart pure as the lily
And his body sanctified
In that dreary British Prison
Our brave irish rebvel died
Prayed the priest that wish be granted
As in blessing raised his hand
"O, Father, grant this brave man's wish
May his soul pass through Ireland."

"Pure as the lily" may be the words you heard as "Kill-ress-alenee." All the best
Seamus