Boston Police report arresting Nigel A. Nichols, 24, of Brockton today in connection with the slayings of three people outside a party 41 Mt. Ida Road on March 29, 2009.

Nichols is charged with being an accessory after the fact to murder and is scheduled to be arraigned on Tuesday in Suffolk Superior Court.

Last month, Boston Police obtained an arrest warrant for Keron Pierre, 24, formerly of Mattapan, on charges he gunned down Shacora Gaines and Chantal Palmer, both 20 and from Brockton, and Anthony Peoples, 19, of Boston, because of an argument. Police say Pierre may have fled to Trinidad.