CHARLESTON, SC (WCSC) - New evidence presented in the Dylann Roof federal trial shows Roof may have had his sights set on the Mother Emanuel AME church for awhile.
In opening statements, lead prosecutor Jay Richardson said the shooting was "cold and calculated."
The testimony jurors heard on Tuesday appears to show exactly how calculated Roof was when planning this, apparently visiting the church on numerous occasions.
An expert with the GPS company Garmin, J.D. Krull, testified that GPS data showed Roof traveled to Mother Emanuel Church at least three times leading up to the shooting, as well as the day of the massacre.
The GPS first went by the church in December 2014, then in February and April of 2015, and June 17, 2015.
Krull was able to provide aerial maps of travel routes Roof took around Mother Emanuel AME a year and a half before allegedly shooting and killing nine black parishioners during a Bible study at the church.
A map dated June 17, 2015 — the day of the shooting — was also shown.
From there the jury learned more about a phone call to Mother Emanuel in February that lasted 13 seconds and several other trips to Charleston and areas outside the city.
During those trips, Roof visited several plantations including Magnolia Plantation, Boone Halle Plantation, and Fort Moultrie.
The jury learned Roof applied for a gun permit, and was eventually allowed to buy one.
The timeline so far shows Roof made two more trips to Charleston after buying that gun.
Justin Britt, a corporal with the Richland County Sheriff's Office Task Force, testified that he was contacted by SLED on June 18, 2015 advising him that Roof, who was still not in custody at that time, may have Columbia ties.
Britt said he and other agents then responded to what authorities believed to be Roof's mother's home which was eventually identified as the mother's boyfriend's house.
When the agents approached the house, a man, later identified as Amy Roof's boyfriend came from the back of the house with his hands up and told them, "He's not here."
According to Britt, Roof's mother collapsed as she was talking to law enforcement agents.
Britt said medical staff responded and treated Amy Roof who recovered and was "100 percent cooperative" with law enforcement.
Britt testified that Roof's mother told him, "I think there's something you need to see."
According to Britt, Amy Roof turned on a camera and scrolled through numerous photos.
Britt said they were pictures of Dylann Roof with the Confederate flag in front of historical sites, as well as one of him holding a black gun. SLED officials testified that there were several pictures showing Roof pointing the gun at the camera.
Kristen Polis, a senior crime scene analyst with the Richland County Sheriff's Office in Columbia, said photos on the camera included various pictures of ammunition.
One photo shows two boxes of ammunition on a shelf, and another shows parts of a Glock handgun sitting on one of the shelves.
Another photo shows a white pillowcase that had been cut into a triangular shape.
Polis said she documented the pillowcase because it was cut to potentially resemble a Ku Klux Klan hood; a SLED agent testified that a picture in the camera showed Roof wearing what looks like to be a white pillowcase fashioned to resemble a Ku Klux Klan hood.
Jurors were also shown a photo of a yellow legal pad with various hand-drawn symbols one of which appeared to be symbolic of the KKK, according to Polis.
Polis also took photos of a picnic table in the backyard which had two fired cartridge casings on top of it. The final photo showed a wooden board up against a tree that was used for target practice.
The prosecution also played three videos Roof made of himself in what appeared to be his backyard.
The videos showed Roof practicing shooting and reloading his gun.
In addition authorities said they found an item that could have been a homemade explosive during the search of the home.
Closing arguments in the federal trial could comes as soon as Thursday morning
The prosecution's last few witnesses include the medical examiner and Polly Sheppard, a survivor of the shooting.
The judge has already told family members images of their loved ones autopsies will be graphic.
The defense is still working on getting their witnesses for the case.
The judge in the case says he's considering adding another charge for the jury to consider, but he didn't go into detail. The jury could head into deliberation sometime Thursday.
Roof currently pleads not guilty to 33 federal charges including hate crimes and murder. If found guilty, the suspect faces life in prison or death.
The sentencing phase likely would not start until after the holidays.
The government also released evidence presented on Tuesday and Monday which includes Roof's full manifesto and video of Roof purchasing a gun at a Columbia area gun store.
On Monday, Tracy Sicks, a special agent with the FBI, testified he was involved with the investigation to preserve a now defunct website, LastRhodesian.com, that was related to the shootings at Mother Emanuel. According to Sicks, an online document found on the site is virtually identical to what Roof wrote in a journal found in his car.
Experts said USB drives found in Roof's car had graphic images and racist content. Investigators also recovered lists of churches in the Charleston area as well as the Midlands.
A yellow piece of paper listed Mother Emanuel AME, Morris Brown AME, Calvary Episcopal, Central Baptist, Ebenezer AME and a catholic church.
Empty ammunition boxes, an American flag, a Confederate flag, a laser attachment for a gun and glock magazine packaging inserts were also found in the car.
Below the government released what they said is Roof's manifesto. CAUTION - Graphic language used.