Authorities said that the man accused of shooting and killing an 87-year-old man inside a senior living facility in Montgomery County, Maryland, may have been planning it for a month.

Maurquise James, 22, of Baltimore, was ordered held without bond on Thursday.

James worked as a medication technician at the Cogir Potomac Senior Living facility. He’s been charged with first‑degree murder in the death of Robert Fuller Jr., who was found dead in his apartment with a gunshot wound to his head on Valentine’s Day.

Fuller, a philanthropist and former lawyer from Maine, had helped establish a transitional housing facility in Maine for women who are veterans.

In addition, James is charged with the attempted first-degree murder of a Maryland State Police trooper and other charges stemming from a Tuesday traffic stop.

NBC Washington reporter Paul Wagner, who was in the courtroom early Thursday, joined WTOP anchors Anne Kramer and Shawn Anderson about further updates in the shocking case.

Listen to or read the interview below:

The transcript below has been lightly edited for clarity.