PITTSFIELD -- A 20-year-old city man who allegedly threatened his ex-girlfriend with a knife at her workplace has agreed to be held for 90 days as a dangerous person.

Jamar Holloway appeared in Central Berkshire District Court for a dangerousness hearing on Friday before Judge Fredric D. Rutberg regarding an alleged Valentine's Day assault on his ex-girlfriend at Macy's in the Berkshire Mall. Police said he forcefully grabbed the her and partially pulled out a knife. He also allegedly manhandled his ex-girlfriend's coworker who tried to come to her aid.

Holloway was already facing assault and battery with a dangerous weapon charges after allegedly hitting the same woman in the head with a cell phone and throwing hot sauce on her on Christmas Day.

On Friday, Holloway had agreed to change his plea in both cases, but decided at the last minute to take the case to trial. Holloway was represented by attorney William D. Barry for Friday's proceedings.

The defendant agreed to be held as a dangerous person and is scheduled to be back in court next month.

Meanwhile, the alleged victim in both cases was denied an extension of her restraining order when the judge learned she had been in contact with Holloway while he has been held in jail for the alleged Feb. 14 assault.