Family members of Maurica Manyan — the D.C. public library police officer who was fatally shot during a training earlier this month — are preparing to lay her to rest at a funeral this weekend. But they are nowhere near to finding closure, and they still have a host of questions about the circumstances surrounding her death.

Manyan was killed at the end of a police training session at the Anacostia neighborhood library on Aug. 4, according to police. Jesse Porter, a retired D.C. police officer who led the training, has been charged with involuntary manslaughter in connection with her death. Witnesses said it appeared that Porter was attempting to make a joke when he fired the shot that killed Manyan; they told police that it appeared Porter did not realize he had a live gun in his hands instead of a training weapon.

Manyan’s parents, grandmother, brother, cousins, and four-year-old son gathered with their attorneys at a news conference on Friday to announce their quest for greater accountability from those responsible for her death.

“Justice for my family is for everyone that … had a hand in the death of my cousin to be held liable and responsible to the full extent of the law,” said her cousin, Leo Richards.

It was the first time Manyan’s family had been to the place where she was shot. As the family held the news conference on the sidewalk across the street from the Anacostia neighborhood library, the flowers and candles that Manyan’s colleagues had put out for her at their vigil last week were still laying by the door of the building.

Chelsea Lewis, the family’s attorney, says her team is currently reviewing documents and other evidence surrounding Manyan’s death, which she called “completely preventable.”

“We are taking the position that this is not an accident,” Lewis said. “It’s not an accident when you pick up a gun as a trained law enforcement officer, point that gun, and pull the trigger.”

Lewis said her team has not yet filed a lawsuit, and is currently looking into whether any library or city policies were violated. They are also trying to clarify what exactly the training was intended for.

According to a DCPL spokesperson, Porter was contracted to provide “use of force training, de-escalation training, ASP baton training and ASP handcuff training.” The spokesperson said that the purpose of the training guns in the room was to “simulate the weight of a real gun and its impact when deploying an ASP baton or using handcuffs.”

The D.C. Public Library hires its own police, separate from the Metropolitan Police Department. Its officers are licensed to be armed, and they patrol the city’s library properties. Porter, a retired D.C. police officer, runs a private company that provides police trainings.

Lewis also said her team will soon review video from the training where Manyan died.

“So many of us wake up every day and go to work and expect our employers will provide us with a safe work environment, but that did not happen,” Lewis said. “We’re here to investigate.”

The family also wants to know more about the resignation of Douglas Morency, the head of the library’s public safety division, their lawyer said Friday. Morency submitted his resignation letter to the library around 11:30 p.m. on August 4, just hours after Manyan died, according to a spokesperson for the library. The spokesperson said Morency was on vacation at the time. But they declined to disclose the reason Morency gave for leaving his job, telling DCist/WAMU that his resignation letter is a personnel document that cannot be made public. Morency did not respond to a request for comment from DCist/WAMU.

“The Library sympathizes with the family and will continue to provide information as it becomes available from the ongoing MPD investigation,” library spokesperson told DCist/WAMU.

The daughter of Jamaican immigrants, Manyan grew up in Prince George’s County. She was 25 when she was killed earlier this month.

Manyan’s mother, Sherene Manyan, brought a folder of photos of her daughter to the press conference. Several of the photos were of Manyan in her high school sports uniforms. Sherene said her daughter played every sport possible: soccer, basketball, softball.

Manyan’s family described her as ambitious. She had worked as a security guard before she was hired to become a D.C. public library police officer. And she had dreams of one day working for the Metropolitan Police Department, her colleagues told DCist/WAMU at a vigil they held for her last week.

Manyan’s family also said she had recently bought a car and a home and moved her father in with her and her four-year-old son Damauri. At the press conference, Damauri wore a shirt that said “Mom’s Little Man.” Manyan’s loved ones cited him as a central reason why they were fighting for accountability.

“We will hold everyone involved responsible, because my little cousin Damauri does not have a mom here today to raise him,” Richards said. “To read that Jesse [Porter] believed it was a joke to aim a … weapon at a member of law enforcement — my cousin — is absolutely disgusting.”

An attorney for Porter did not respond to a request for comment. A preliminary hearing in Porter’s case is currently scheduled for September 1.