A 28-year-old Brooklyn man on probation for a 1996 weapons possession conviction was arrested yesterday morning and charged with murdering his 67-year-old grandmother, the police said.

The man, Michael Pack of 363-385 Pulaski Street in Bedford-Stuyvesant, killed his grandmother, Eugenia Lloyd, ransacked her apartment and stole roughly $120 after arguing with her over money, the police said.

Mr. Pack is undergoing a psychiatric evaluation at Kings County Hospital, said Detective Robert Samuel, a police spokesman.

Ms. Lloyd was found dead in her apartment at 365 Powell Street in Brownsville at 8:15 P.M. on Monday after one of her other grandsons called the police and reported not seeing her for two days, Detective Samuel said. A law enforcement official who spoke on condition of anonymity said Ms. Lloyd was bludgeoned and strangled.