A year after a series of random shootings in Northern Colorado, law enforcement officials still haven’t made any arrests and are seeking the public’s help to find more leads.

At a press conference called Tuesday by members of a task force dedicated to solving the shootings, Larimer County Sheriff’s Office Public Information Officer and Northern Colorado Shooting Task Force spokesman David Moore released additional video and other evidence in the hope that members of the public will speak up if they have information.

Moore said at the press conference that law enforcement agencies have investigated and ruled out 12 people, looked into more than 5,100 tips, followed up on more than 1,800 vehicles, conducted more than 1,000 interviews and processed 340,385 phone records.

Despite not yet locating the shooter, task force members said they believe they will locate the person or people responsible.

“The task force believes these cases will be solved with the help of the community,” Moore said.

The task force, formed in May 2015, is investigating six shootings, and though they have not all been linked, the first and second have been linked to each other, the third and fourth have been linked to each other, and the fifth and sixth have been linked to each other, all by forensic evidence.

The shootings took place between April 2015 and September 2015.

The first was that of 20-year-old Milliken woman Cori Romero on April 22, 2015, when she was shot in the neck while driving on Interstate 25, east of Fort Collins. Romero survived.

The second shooting was that of 48-year-old city of Windsor employee John Jacoby on May 18, 2015, while he was riding his bike on Weld County Road 15. He was reportedly shot twice and died.

A third shooting that led to the death of 65-year-old William Connole on June 3, 2015, occurred near downtown Loveland.

The fourth shooting occurred at roughly the same time as that of Connole’s shooting about two miles away at First Street and Denver Avenue. A motorcyclist was shot at but not injured.

The fifth and sixth shootings occurred on the same day, Sept. 13, 2015.

The Banner Health Center on Lady Moon Drive and Cottonwood Plains Elementary School on Turman Drive were damaged by bullets, but no one was injured. The health center was occupied, but the school was not.

The task force has also ruled out any connection of the shootings to incidents of shattered windows reported to local law enforcement agencies.

Larimer County Sheriff’s Office task force member Capt. Robert Coleman said while all the incidents haven’t been connected to one another, the reason they’re all being investigated by the task force is that they are all random.

“They are at people, and their intent is they are shooting into vehicles or at people with the intent of causing serious bodily injury or death,” he said.

Among information officials released at the press conference included two surveillance videos from two of the shootings, scenes and maps of confirmed and suspected routes and depictions of two vehicles of interest. Members of the public are asked to report seeing vehicles that meet the descriptions to the task force.

The first vehicle of interest, a GMC or Chevrolet pickup truck that was described to the public last year, is linked to the third and fourth shootings. The model year has been expanded to 1973-1987, and color is no longer a consideration.

The second vehicle of interest was released to the public Tuesday, a red Mini Cooper with a black top, which task force members think is a 2002-2007 model.

The task force is made up of federal, state and local law enforcement agencies, but officials also reach out to other states when they hear of similar incidents to see if any connections can be drawn, according to Coleman.

Moore said despite requests for the information, the task force won’t release any information about firearms or bullet caliber, forensic information or tactics and range of shots — though it also wouldn’t dispute information released by the coroner’s office that Connole was shot in close range. He said releasing the information would put the investigation at risk.

In an interview, Moore said it’s also difficult to determine how much money has been spent on the task force’s work because there isn’t an individual budget — each agency involved in the task force provides resources.

Similarly, he said, it’s difficult to track time — investigators and officials involved in the task force also hold jobs at their respective agencies.

But Moore remained confident that the task force would solve the crimes and said members look forward to the day they can announce that they have to the victims’ families and the public.

“Historically, and in my experience, you get that many experienced investigators together, you’re more apt to turn every stone over at least twice,” he said.

Moore stressed in the press conference that anyone with any leads should call the task force tip line at 970-498-5595, even if they think someone else has already reported the information.

Law enforcement also reminds the public to stay vigilant, he said.

The Federal Bureau of Investigation is still offering a $50,000 reward for information that will lead to arrest and conviction on the cases.

The task force has set up a Facebook page with videos and other information about the shootings at facebook.com/Northern-Colorado-Shooting-Task-Force-898627956871939/.

Members of the task force are conducting their work in an undisclosed location, and the Larimer County commissioners approved $33,000 to renew the lease earlier this month.