SQL will tell you if/why it won't shrink the log:
SELECT log_reuse_wait_desc, * --col name may be a little off, from memory, but it's at least close
WHERE name = 'yourDbName'
SQL DBA,SQL Server MVP(07, 08, 09) Prosecutor James Blackburn, in closing argument in the Fatal Vision murders trial:
If in the future, you should cry a tear, cry one for them [the murder victims]. If in the future, you should say a prayer, say one for them. And if in the future, you should light a candle, light one for them.