In the past few days since Nair returned from a business trip, Hodden spent most of his time in the Iwabuchi Library, using his student ID card from Sekpeth College to receive a membership card for free.

According to the regulations, during the period of study at the college, you can use all the facilities of the library for free, and you can rent up to 30 books home each time; if you do not return them after the deadline, you will only be asked to stay in the library to help organize the books as a "late fee", and you need to organize the books for one hour for each day overdue.

In addition, if you use your membership card, you can also enjoy a 20% discount on meals at the rooftop lounge.

Now Holden can finally understand that even though the Leia Empire officially sponsors the Iwabuchi Library, the reason why they still have a membership card annual fee policy is indeed to give students great convenience, which also makes Iwabuchi's university students stay in the library for a long time.

Yesterday, Issa tried to find Holden, but missed the time, so she communicated through Guzmin's message, and left all the photos that Holden needed at the bar, and then confirmed the current meeting.

After the precipitation of time, Issa has also successfully accepted the fact that the security team may be involved, and the mood has returned to a normal state.

"I asked Lenoer's doctor and checked the medical records. Indeed, Lenoll was undergoing long-term treatment, with severe pain in his neck, left arm and back, and doctors did not think he had enough strength to swing the baseball bat and deliver the fatal blow. ”

This alone is enough to rule out Lenor's murder suspicion, but there is another possibility, so Issa added, "Lenore is an enlightener, but not a psyker", which also eliminates the last suspicion, plus Holden's previous inference, the answer is even clearer.

Issa didn't go any further, his eyes fell on Howlen's hands, "What about you? Did your jigsaw puzzle find any useful clues?"

She knew what Holden was doing—he was piecing together the carpet behind the dead man's heels like a puzzle piece—but she couldn't understand the meaning behind Holden's actions.

Instead of speaking, Hoden picked up the two wrappers on the table and showed the back to Isa, "Here's the result." ”

The rough paper depicts two drawings that look to be the floor plans of the living room and master bedroom of the Lenoll family, and then marked with red and blue arrows, mostly blue;

"What do those arrows represent?" Issa needed a hint.

Holden didn't continue to sell off, "Those arrows are the marks left by cleaning the carpet." ”

Isa's eyes lit up suddenly, "All the arrows are pointing in the direction of the doorway. Then, in a flash of inspiration, Issa understood, "You mean, someone used a sweeper to remove all the footprints?

Holden nodded, affirming Issa's speculation, "Someone went backwards to clean up their footprints and left Lenore's house. The second floor master bedroom is in the same pattern – leading first to the doorway and then to the hallway, all of which are cleaned up. ”

Issa didn't follow Holden's train of thought, she knew what Holden was thinking, but she had to question, "This still doesn't prove anything, there are so many footprints and traces at the scene, how can we be sure that these actions to clean up the traces were done after the murder?"

"Because none of the footprints left at the scene are of any one of the four members of the Lenole family, you can compare them with their shoe prints. Hodden said firmly, "And the subsequent footprints were all left by members of the security team during the on-site investigation." You ruined the scene. ”

Issa opened her mouth, but she couldn't speak: although she had understood what Holden meant, it was now clear and intuitive, and the frustration was indescribable.

But Horden didn't repeatedly mock the vigilantes, he just told the truth, not noticing Issa's embarrassment, and he continued.

"You see, I made marks with red markers, you can go back to the vigilante and compare the footprints of the search team to see if my theory can be confirmed, and those blue markers are the traces left by the sweeper, leading in the same direction. ”

Issa understands that Hoden may be right, "Assuming for a moment that your guesses are correct, then, you mean, the real killers of the Lenore family, are trying to cover up their traces?"

Step by step, Mr. Lenoer's murder suspicion is getting rid of it, so who is the real culprit?

Issa immediately thought of the disputes and disagreements within the vigilantes, and her head began to ache faintly.

"We need further confirmation. Issa said quickly, leaning forward slightly, and said to Hoden in a low voice, "I know what you're thinking right now, but if these arrows are going to end up pointing inside of us, and not the other suspects, I need more evidence, hammer-like evidence, so I can ...... to get more support. ”

Haddon shrugged nonchalantly, "Did you check Mr. Lenoor's shirt?"

"Yes, there were blood stains on the hem of the garment and on the left shoulder. Issa replied.

"Hmm. Mrs. Lenoor's head was under the kitchen table, and she was crawling under the table to try to seek protection, and then she was hit a second time, and most of the blood splatters on her head were blocked by the table, and only the bottom half of the murderer's clothes were spilled. ”

Holden's analysis made Issa react immediately:

If Mr. Lenoll is the murderer, then there should not be blood on his shoulder, which also means that it is a bloody coat that the murderer made after completing the murder and framed Mr. Lenoor.

As for the blood on the shoulder, it should have been accidentally spilled during the "imitation" process, or when the blood splash marks were made, the angle and direction were wrong, which led to the blood stains on the shoulder.

However, this is not what Hoden needs, because he has long ruled out Mr. Lenoll as suspicious.

"Isa, you see, this murderer knows the traces of blood splatters, even better than you, the leader of the murder team, and the other party has a clear understanding of the traces that may be left in the event of death. ”

What Horden didn't say was that it had even surpassed Iwabuchi's existing detective level, and it could be seen that the other party was a super-capable mastermind.

"Secondly, the other party also knows that there is no possibility of cleaning up the footprints left by himself, and the other members of the security team just walked in like this, destroying the scene, much more professional than you. ”

"Professional killer?" Issa blurted out.