FALL RIVER, Mass. — Jury selection was set to begin in the murder trial of former NFL player Aaron Hernandez, accused of killing a man in June 2013, when Hernandez had a $40 million contract as a tight end with the New England Patriots.

Hernandez, 25, is accused of killing Odin Lloyd, a 27-year-old semiprofessional football player from Boston who was dating the sister of Hernandez’s fiancée. Prosecutors say Hernandez and two other men, Carlos Ortiz and Ernest Wallace, picked Lloyd up at his home in Boston’s Dorchester section and took him to an industrial park near Hernandez’s home in North Attleborough, where he was shot to death.

Prosecutors haven’t said who pulled the trigger, but said Hernandez orchestrated the killing. Ortiz and Wallace have pleaded not guilty to murder charges and will be tried separately. The murder weapon, which investigators believe was a .45-caliber Glock, has never been found.

More than 1,000 potential jurors are expected to report to Bristol County Superior Court in Fall River on Friday, Monday and Tuesday for the first phase of jury selection, filling out written questionnaires. Later next week, Bristol County Superior Court Judge Susan Garsh will conduct individual questioning of jurors. Eighteen jurors will be selected. The entire process is expected to last at least through next week, and it could take longer.

Nearly 300 people are on the prosecution’s list of potential witnesses, including Patriots coach Bill Belichick and team owner Robert Kraft.

Among the others listed as potential witnesses are Hernandez’s fiancée, Shayanna Jenkins. Prosecutors have said Jenkins lied dozens of times to the grand jury investigating Lloyd’s killing, including when she said she couldn’t remember where she disposed of a large box from the basement of their home that Hernandez allegedly told her to get rid of.