Detective case 1

                                                         I Love You Dad

You are a famous detective named John Kei. You must solve the murder of a famous company owner. there are 4 suspects are:  
1. Chris Bernard (First Son)
2. Sam Jackson (Second son, he and Robby are twins)
3. Robby Jackson (Second Third)
4. Jack Smith ( His Brother)
 
Found some clue:  
1. A bloodied kitchen knife victim
2. A paper containing the number held by the victim. ie: 10 1 3 11 19 13 9 20 8
3. Found a book code belonging to the victim
4. The victim had met with the three suspects (except Chris) in the yard, living room, and kitchen. 
5. Victim's wife heard the sound of the room one of their children, he heard "I really do not like daddy! Him always comparing me to my brother, as if I shadow of him. Dad think if he's much better than me. Felt I did not want to be born in this world! oh ... I know! I could kill him. "
6. alleged victim's brother really wants his the inheritance from his brother.


The suspect gave Specification, namely:
1. Chris: "I'm not innocent I was in the hospital before father's death '
2. Sam: "No I did it! Robby was the one who killed father"
3. Robby: "No, not me I did not do anything! Chris was the one who killed father"
4. Jack: "I'm not going to do it? He was the dear my brother".

all of the information expressed by the suspect was no evidence that could be used as an alibi.

Determine who is the murder and how the perpetrator kills the victim (If you can with reason). by writing your answers in the comments.

                              Answer

ok, now it's time to uncover and reveal who the murder behind this sad case.
There are several steps you can take are:

First, the victim left a paper containing a password containing numbers are: 10 1 3 11 19 13 9 20 8. In order to decode this, we need a base that is, A = 1 - Z = 26. So if 10 = A, 1 = A, 3 = C, 11 = K, 19 = S, 9 = I, 20 = T, and 8 = H. The password has been on break, pointing to the perpetrators of the killings, the Jack Smith, the victim's brother.

However, the evidence is not strong enough to accuse Jack Smith as murder. There are other ways to strengthen this evidence, using the statements of suspects. All information is interconnected, so it can be solved using logic. If we start from the testimony of Sam, the description refers to Robby. Then Robby information pointing to Chris. Chris is a true statement. In addition, Chris alibi reinforced with instructions, that when the victim's death, Chris was in the hospital. Thus, only one is left and him alibi is incorrect. So that this evidence can strengthen the first evidence earlier.

In addition, several clues point to him, the alleged victim's brother really wants his inheritance from his the brother and the victim had met with the three suspects (except Chris) in the yard, living room, and kitchen. If the blade is in check, then there will be fingerprints murder, that is Jack. 
Thus, murder has admitted his crimes, and he was arrested for, approximately 8 years old, on charges of murder and persecution. Eventually the case was completed and closed. "This case, really sad! Period 'own brother to kill his own", John Kei.

"Do not ever love someone with all your heart, because someday that person will be an enemy to us, and do not ever hate someone with all your heart, because someday that person will be our good friend", John Kei