As investigators work to piece together the case against Charlie Kirk’s accused assassin, many questions remain surrounding the events leading up to and immediately after the moment the fatal shot was fired. 

Kirk was shot and killed while speaking at a Turning Point USA event at Utah Valley University on Sept. 10, sparking a massive manhunt as authorities raced to find the conservative activist’s killer. 

Less than two days later, Tyler Robinson was arrested in St. George, Utah after his family confronted him regarding his resemblance to law enforcement photos of the suspect – leading him to admitting his involvement, according to authorities. 

“I would not be surprised if the actual results of the testing were to indicate that there were other DNA profiles on the towel, DNA profiles that are, as of right now at least, unknown,” Valentin told Fox News Digital. “And the investigators would like to figure out whose DNA that is, because if you’re drawing the inference that someone’s DNA on the towels means that they had handled it at about the time of the shooting, having more than one DNA profile means that you potentially have more than one person contributing to this.” 

As the investigation continues to uncover new details, Valentin said the role of forensic evidence will be the key in piecing together what truly happened on the day of Kirk’s assassination. 

“In a lot of situations, it’s the forensic evidence that really confirms what you’re figuring out investigatively,” Valentin said. “And this seems to be one of those kinds of cases.”

Fox News Digital’s Ashley Papa contributed to this report.