[SOLVED] [1.7.2] Double chat output?

My problem is that in the chat are always 2 different messages but i want only one

In my eventhandler

LivingDeathEvent

                Entity player = event.entity;
	int x = (int) event.entity.posX;
	int y = (int) event.entity.posY;
	int z = (int) event.entity.posZ;
	World world = event.entity.worldObj;

	if(player instanceof EntityPlayer)
	{
		world.setBlock(x, y, z, main.corpse);
		TileEntityCorpse te = (TileEntityCorpse)world.getTileEntity(x, y, z);
		te.setPlayer(((EntityPlayer) player).getCommandSenderName());
		te.setTeam(((EntityPlayer) player).getTeam().getRegisteredName());
		if(event.source.getEntity() instanceof EntityPlayer)
			te.setMurderer(event.source.getEntity().getCommandSenderName());
                   [...]
                 }

In the block class

        @Override
public boolean onBlockActivated(World world, int x, int y, int z, EntityPlayer Eplayer, int par6, float par7, float par8, float par9)
{
	TileEntityCorpse te = (TileEntityCorpse )world.getTileEntity(x, y, z);
	String player = te.player;
	String team = te.team;

	Eplayer.addChatMessage(new ChatComponentTranslation(player + " was a " + team));
	//System.out.println(player + " " + team + " " + te.murderer);
	return true;       	
}

In the TileEntity

public String player;
public String team;
public String murderer;

public TileEntityCorpse()
{
	player = "Steve";   		//Just fillers
	team = "Notch's Slaves";
	mörder = "Herobrine";
}

public void setPlayer(String player)
{
	this.player = player;
}

public void setTeam(String team)
{
	this.team = team;
}

public void setMurderer(String murderer)
{
	this.murderer = murderer;
}

@Override
public void readFromNBT(NBTTagCompound par1NBTTagCompound)
{
	super.readFromNBT(par1NBTTagCompound);
	player = par1NBTTagCompound.getString("player");
	team = par1NBTTagCompound.getString("team");
                murderer = par1NBTTagCompound.getString("murderer");
}

@Override
public void writeToNBT(NBTTagCompound par1NBTTagCompound)
{
	super.writeToNBT(par1NBTTagCompound);
	par1NBTTagCompound.setString("player", player);
	par1NBTTagCompound.setString("team", team);
	par1NBTTagCompound.setString(" murderer",  murderer);
}

Chat output

Steve was a Notch's Slaves

Player135 was a traitor