I just finished LK25 Run and after LK Normal was killed around 20 minutes ago it dropped a Glorenzelg which i was the only who would be able to Roll it as Main Spec. There were 3 rolls. The first was 100 for Hartge's Off-spec, the second was 5, and my roll was 75. After i told the leader about the problem he said i didn't roll at all and refused to help me by correcting the mistake he made. I took 4 pictures to prove that DK's main spec was frost and he changed his specialization just to roll for the item.
I just finished LK25 Run and after LK Normal was killed around 20 minutes ago it dropped a Glorenzelg which i was the only who would be able to Roll it as Main Spec. There were 3 rolls. The first was 100 for Hartge's Off-spec, the second was 5, and my roll was 75. After i told the leader about the problem he said i didn't roll at all and refused to help me by correcting the mistake he made. I took 4 pictures to prove that DK's main spec was frost and he changed his specialization just to roll for the item.
It's possible that the DK changed his MS before LM was pulled. Raid leaders usually ask if somebody wants to change their MS before pulling the 1st boss. Looked up the DK in armory and it seems he may have changed his MS rolls to Unholy.
Your 4 screenshots alone won't prove anything. You should've screenshot much more.
* Screenshot containing explaination of looting rules (and if any item is reserved). If it wasn't mentioned you should consider asking for it within the raid/group, before it begins.
Examples of clear looting rules:
"LF2M DPS and Healer Icecrown Citadel 25. All tier tokens reserved for guild, everything else will be distributed via rolling"
"Organising VOA raid, all items to be rolled for. Nothing reserved"
"LFM Trial of the Crusader. All loot will be distributed via rolling"
** Screenshot showing raid composition (full raid group window) at the start of raid.
** Any changes of Master Looter should be documented too to further improve the evidence.
Should Raid leader change person with Master Loot he has to ensure that new ML knows how loot is distributed.
*** Screenshot showing all rolls for an item (preferably in a big chat window) starting when item roll is called for.
*** Or screenshot showing player changing looting rules during the raid.
**** Screenshot showing player taking item for himself/giving it to player who did not win roll. Raid window showing raid leader and ML should be opened as well, alternatively if person left raid after ninja a message showing him leaving raid.