U-S MARSHALS TOOK GRACE INTO CUSTODY YESTERDAY... HE IS FACING A NUMBER OF CHARGES... INCLUDING HOMICIDE AND ROBBERY. THREE RIVERS CASINO EMPLOYEES ARE EXPECTED TO BE CITED BY POLICE FOLLOWING A FIGHT IN THE CASINO'S TEAM DINING ROOM EARLY SATURDAY. STATE POLICE SAY A 57-YEAR-OLD MAN, A 43- YEAR-OLD MAN AND A 22-YEAR-OLD WOMAN WERE ALL INVOLVED IN THE INCIDENT. INVESTIGATORS SAY THE 57-YEAR-OLD MAN THREW A PUNCH AT THE 43-YEAR-OLD MAN AND SWUNG A LUNCH TRAY AT THE WOMAN. THE INCIDENT CONTINU