UPDATE: Judge George O’Toole expects the actual trial, beyond jury selection, to begin on Monday, January 26, and last for approximately three to four months.

The trial for alleged Boston Marathon bomber Dzhokhar Tsarnaev will begin on Monday, January 5. The first phase of the trial is the jury selection which is slated to commence at 9 a.m. before Judge George O’Toole at the Joseph Moakley Federal Courthouse in South Boston.

Tsarnaev stands accused of detonating two pressure cooker bombs at the finish line of the 2013 Boston Marathon, killing three bystanders and injuring 264. His defense team attempted to delay the start of the trial as far back as September 2015 as well as relocate the trial out of Boston, but Judge O’Toole denied both motions on the grounds that Tsarnaev would receive just as impartial a jury in Boston as anywhere else due to the immense notoriety of the case.

According to NPR, the jury selection is estimated to take “several weeks” and The New York Times predicts 1,200 people will be considered over just three days. “This is the largest jury pool that the court here has summoned recently,” reports the Times.

Mayor Marty Walsh expects the trial to open up old wounds for the City of Boston but knows that it’s necessary for the judicial process in order for the victims and survivors to gain closure.

“A lot of families are going to relive what happened on that horrific day,” the mayor told ABC News.

Tsarnaev faces 30 federal charges, some of which carry the weight of capital punishment including the use of a weapon of mass destruction.

“This case is not about guilt,” Northeastern University law professor Daniel Medwed told NPR. “In my mind, this case is really about whether or not he’s going to get the death penalty.”

In fact, TIME reports that the defense will argue against the death penalty as opposed to Tsarnaev’s innocence and that Tsarnaev was influenced by his older brother Tamerlan, who died during an early morning firefight on the streets of Watertown.