DELPHI, Ind. — A pattern on the body of Delphi, Indiana, murder victim Libby German showed her blood was mixed with moisture, an officer testified at Richard Allen’s trial. The officer said he believed the wetness was Libby’s tears — prompting family members watching his courtroom testimony to audibly react.

Libby, 14, and her best friend, Abby Williams, 13, were walking along a hiking trail in rural Delphi when their throats were slit and they were left in the woods on February 13, 2017. Their bodies were found the next day.

Allen was arrested in 2022 and pleaded not guilty to murder.

Major Pat Cicero of the LaPorte Sheriff’s Department took the stand Monday. Cicero was not at the crime scene in 2017, but said he studied crime scene photos and various reports.

Abby’s mother wept quietly in the courtroom as prosecutors showed close-up photos of the girls’ faces, bodies, hands, legs and feet.

Cicero showed the jury a picture of a bloodstain on a tree. He explained that it was a transfer stain, meaning it was left behind when a bloody object touched it.

Cicero testified that the blood stains and patterns on the tree led him to believe that the attack on Libby began at the tree, with gunshots that could cause the tree to splatter.

Libby died from her injuries in a large pool of blood while leaning against the tree, Cicero said. He said he believed she was then dragged about 20 feet to where her body was found.

Abby was likely restrained or unconscious when she was killed, Cicero said, because she had no blood on her hands or arms and was found with her hands raised vertically.

“Her final position is almost like she’s boxing,” he said.

Cicero said he has been to hundreds of crime scenes and described the position of Abby’s body as highly unusual. “I never saw him,” he said.

He also said that Abby probably didn’t die right away. “This would have taken some time,” he said.

Allen has admitted to being on the hiking trail the day the girls were killed, but denies any involvement in the killings.

Also Monday, Indiana State Police Forensic Investigator Stacy Bozinovski said no DNA linked Allen to the crime scene in Delphi, Indiana.

RELATED | Delphi murders trial: Extended video from victim’s phone played in court

Jurors hear tapes of Richard Allen’s interviews

Tuesday began with the jury seeing two interviews Allen did with police before his arrest.

This was the first time Allen’s voice was heard in court.

Judge Frances Gull told the jury that parts of the video had been redacted because they did not relate to the investigation.

First, the state played the October 13, 2022 interview with Carroll County Sheriff’s Office Investigator Steve Mullin and Chief Deputy and now Sheriff Tony Liggett. The video lasted about 90 minutes.

Allen described himself in the video. He explained that he was a husband and father. He grew up most of his life in Mexico, Indiana and served in the National Guard. Allen also told Mullin and Liggett that he had a heart attack in 2010 at the age of 37 and that he suffers from depression and anxiety.

Allen said he has worked at CVS since 2013 and before that for Walmart for 10 years.

The interview then shifts to February 13, 2017, the day Libby and Abby disappeared. Allen said he was at his mother’s home in Peru, Indiana, while his wife was working. He estimated he left his mother’s around 11:15 a.m. and arrived on the Monon High Trail around noon.

Allen couldn’t remember exactly where he parked his car. When asked about his route, Allen told investigators, “The way it spins.”

Mullin asked Allen if there was any other way he would have led to get there. Allen said, “maybe,” but he always took the same route through downtown Delphi.

Allen said he told his wife he was on the trail the day the girls disappeared. After the murders, she mentioned that police are looking to talk to people who may have information. Allen went to the sheriff’s office and set up an interview with Department of Natural Resources Officer Dan Dulan. Allen spoke to Dulan just days after Libby and Abby were found dead.

The interview ended up being misfiled and overlooked for nearly five years.

During his videotaped interview, Allen told Liggett and Mullin that there were three girls he met on the trail.

Allen said: “I don’t remember seeing anyone else that day. If I did, they didn’t jump on me.”

Allen said he kept an eye on his phone while on the trail. After he left, he said he went home and continued to pursue the stock market to “try to get rich.” He said he considers it a hobby.

Allen described his time on the Monon High Bridge. He said he went out on a rig to watch the fish and then left the trail at 1:30 or 1:45 p.m.

Allen said he saw cars parked at the Mears entrance to the trail when he arrived. When he returned to his car after the ride, Allen said there were no vehicles there.

Liggett and Mullin asked him what car he drove to the trail. He said he normally drives a gray Ford 500, but took a black car when he drove outside of Delphi. Investigators believe he was driving the black 2016 Ford Focus.

Allen told investigators he was wearing blue jeans and a Carhartt jacket. He said he had a black and blue jacket at the time, but thought he was wearing the black one. Liggett asked if he was wearing a hat, Allen said that if he had, it would have been the “cap” he kept in his jacket pockets. Allen said he was wearing tennis shoes or military-style boots.

The interview started to get tense when Liggett and Mullin asked to see Allen’s phone. Allen asked how long they would need it and said he used Verizon’s Ting for cell service. Allen said he didn’t think he still had his phone from 2017 and thought his wife had recycled it.

Liggett asked if he could confirm some of the information by searching Allen’s home and pulling data from his current phone.

Allen then said, “Looks like I’m going to be somebody’s fall guy.”

Mullin read a warrant to Allen to which he replied, “The conversation we’re having, it sounds like you think he might have done it.”

Liggett then assured Allen that he was just “crossing the T’s and dotting the Is” as they spoke to people on the trail on February 13, 2017.

Allen responded by saying, “I’m not going to have the police come through my house and stuff.”

Allen initially gave police his phone number, then changed his mind.

He told investigators: “You know what. Let me talk to my wife before we do anything.”

Mullin told Allen they wanted to search his house so they could rule him out.

Allen replied: “I had nothing to do with it. I don’t want to be more involved than I have to be.”

The interview becomes increasingly tense as the investigators ask Allen if he is the “Bridge Guy.”

Allen said, “I’ve never met them,” meaning the girls.

Allen continued to deny any involvement in the crime as they continued to show him a picture of “Bridge Guy”.

“It’s not me. If it’s taken with the girls’ phone, it’s not me,” he said.

Liggett said, “He’s wearing the same clothes you told us. Just tell us what happened.

Then Allen began to wrap up the interview.

He said: “We are all done here. Your attitude towards me has changed. I feel like I’m being interrogated.”

Allen went on to say, “You’re not going to find anything to connect me to the crimes; so i’m not worried. So, arrest me or take me home.”

Allen then became furious saying, “Are you arresting me? Are you arresting me?” He added: “You have lost my trust. It’s stupid. Now you’re pissing me off.”

After the interview was over, Allen was taken home. A few hours later, the police arrived with a warrant and searched his property.

The jury then saw the interview Allen had with Indiana State Police Detective Jerry Holeman. It happened on October 26, 2022.

The video begins with Holeman telling Allen what was taken from his home during the police search and what is being tested. Holeman asked if Allen ever loaned him any property, such as his gun. He responded by saying “no”.

Holeman asked Allen if he had the gun on him while he was walking on February 13, 2017. He said he did not.

In the video, Holeman tells Allen that his SIG SAUER matched the unspent round at the crime scene. Allen laughs and says, “There’s no way.”

Holeman told Allen that the media would portray him as a monster and that the only way to escape that was to tell the truth. Holeman then pressed Allen saying, “Why did you say ‘it’s over’ during the search warrant?”

Allen replied, “You talked to people I worked with. You talked to my neighbors.” Holeman then told Allen, “The evidence shows you’re involved.” Allen went on to say, “There is no way a gun of mine was anywhere near the girls. Try saying I killed two girls. I’m done. The damage is done. Just do what you want to do. do.”

Holeman went on to say, “I don’t think you’re the one who killed them. Allen said: “Anyone who knows me knows I could never do something like that. I didn’t kill two little girls. You’re trying to get me to confess to something I didn’t do.”

In the video, Holeman goes to have a technician swab Allen’s mouth for a DNA sample.

Holeman goes on to say, “The ball is in your court. I’m trying to help you. Why does all this evidence point to you?”

“I can’t tell you,” Allen said.

Holeman then tells Allen that he has five witnesses who identified Allen on the bridge with the girls on the day of the murders. Holeman testified Saturday that he lied about it as an interview tactic. Allen responded to Holeman by saying, “It didn’t happen. They didn’t see me around the girls because I wasn’t around them. I won’t admit to something I didn’t do.”

Holeman continued to press Allen, Allen becoming increasingly agitated.

Allen said: “I’m not going to admit to something I didn’t do. I’m done. If you’re going to arrest me, arrest me. I’m done. I don’t talk anymore. This is ridiculous.”

He went on to say, “I don’t think anything you have will tell me about the murders of two little girls.”

Holeman then turned to the unspent cartridge found between the girls’ bodies. He explained to Allen how the testing linked him back to his weapon. Allen then responded, “Not a single bullet from my gun was found at the crime scene.”

Holeman gives him several more opportunities to confess to the crime, to which Allen replies, “I didn’t kill two little girls.” Holeman then asked, “What did you do?” Allen replied, “I went for a walk on the path and went home.”

ABC News’ Janel Klein contributed to this report.