My boyfrien got picked up frm jail frm immigration and transfered to the krome facility!

The facts your present are not clear. If I understand them correctly you are saying that your boyfriend was arrested for 2nd Degree Murder and then got arrested for a second (unnamed) offense, but the murder charges was dropped and after you posted bail he was detained by Immigration and Customs Enforcement.

Absent a prior criminal/immigration history which would render your boyfriend deportable from the United States, ICE cannot hold an alien as a result of a pending criminal charge. However, if he has been convicted of other crimes he may be deportable because of those and his recent arrest caught ICE's attention and they may have a right to detain him.

You should immediately consult with an immigration attorney who has knowlege of criminal removal issues. He or she can determine why your boyfriend is being held and attempt to facilitate his release as may be appropriate depending upoin the circumstances.