Critical thinking means looking at the evidence and drawing conclusions to form a theory, then looking at evidence trying to disprove the theory.  For a murder to take place, investigators always look for three things:  weapon, motive, opportunity.  There are three possibly hypotheses regarding Lee Harvey Oswald's guilt:  1) He didn't do it; 2) He did it alone; 3) He did it as part of a conspiracy.  Below, I briefly go through some of the arguments for and against each hypothesis.  I ask questions and where there are obvious answers, attempt to answer them.

1. HE DIDN'T DO IT.

• WHO ELSE WAS AT THE BOOK DEPOSITORY THAT DAY SHOOTING HIS RIFLE? SOME GUESSES BUT NO EVIDENCE.
• DID SHOTS CAME FROM THE BOOK DEPOSITORY? YES, BUT WERE THEY THE ONLY SHOTS?
• DID HE HAVE OPPORTUNITY? YES.
• DID HE HAVE A MOTIVE? QUESTIONABLE POLITICAL MOTIVE.  HE WAS A COMMUNIST, WHICH MAY HAVE BEEN MOTIVE ENOUGH.

1. DID HE BLAME JFK FOR HIS IMPOVERISHED CONDITION? NO
2. DID HE HATE JFK? NO
3. DID HE THINK JFK'S DEATH WOULD HELP THE STRUGGLE? POSSIBLY, BUT HOW?  HE DID NOT VOICE THIS OPINION.

2. IF HE DID IT , HE DID IT ALONE

• WARREN COMMISSION CONCLUDED THERE WAS ONE ASSASSIN, ONE RIFLE, THREE BULLETS; MOTIVE:  A LONE NUT.
• EVIDENCE THAT HE DID IT ALONE IS QUESTIONABLE ON MANY COUNTS

1. THE MAGIC BULLET STRETCHES CREDULITY BUT CAN'T BE PROVEN UNTRUE
2. THE AUTOPSY QUESTIONS ABOUT AUTOPSY DISCREPENCIES HAVEN'T BEEN ADEQUATELY ADDRESSED
3. WAS THERE A RUBY-OSWALD CONNECTION?  RUMORS OF THIS
4.  WHY WAS THE CASE CLOSED SO QUICKLY AND CONTRADICTORY EVIDENCE NOT FOLLOWED UP ON? THIS DEFIES CREDIBILITY
5.  WHY WERE SO MANY LEADS NOT FOLLOWED BY THE WARREN COMMISSION HERE'S THE REAL STICKLER

3. CONSPIRACY: MUST BE CONSISTENT WITH OSWALD'S MOTIVES

• WHAT IS OSWALD'S MAIN MOTIVE DURING THIS PERIOD?  ACCORDING TO HIM, IT IS IS TO GET TO CUBA
• WHAT IS THE EVIDENCE THAT HE DIDN'T DO IT ALONE?
• TIES TO THE MOB
• TIES TO THE ANTI-CASTRO UNDERGROUND
• TIES TO THE CIA/FBI
• TIES TO DAVID FERRY
• MONEY IN HIS BANK ACCOUNT
• WITNESSES TO SHOTS COMING FROM OTHER LOCATIONS
• QUESTIONS ABOUT AUTOPSY
• QUESTIONS ABOUT OSWALD'S MARKSMANSHIP
• IF YOU WERE THINKING UP A CONSPIRACY THIS COMPLICATED AND HIGH STAKES, WOULD YOU TRUST IT TO ONE MARGINAL SHOT?
• WOULD ALL ASSASSINS USE THE SAME TYPE OF WEAPON?
• WHY DID OSWALD ORDER HIS WEAPON FROM A MAILORDER HOUSE INSTEAD OF PURCHASING IT LOCALLY?

4. IF IT WAS A CONSPIRACY, WHAT KIND OF CONSPIRACY WOULD MAKE SENSE, WOULD HAVE HAD ENOUGH MUSCLE BEHIND IT TO SUCCEED, AND THAT THERE IS SOME KIND OF EVIDENCE FOR?

• LEFT WING--COMMUNISTS

1. RUSSIAN? NO EVIDENCE, NO MOTIVE
2. CUBAN?
A. KENNEDY HAD GIVEN SOME KIND OF SUPPORT FOR PLANS TO ASSASSINATE CASTRO, POSSIBLY MAKING CUBAN ENEMIES
B. OSWALD'S FAIR PLAY FOR CUBA COMMITTEE LINKS HIM TO CUBAN COMMUNISTS
• RIGHT WING--LAW AND ORDER, MILITARY TYPES

1. ANTI CASTRO CUBANS HAVE A MOTIVE  BAY OF PIGS
2. DID ANTI CASTRO CUBANS HAVE CONNECTION WITH OSWALD?
A. HE OFFERED SERVICES TO TRAIN GUERRILLAS
B. HIS FPFC COMMITTEE WAS HOUSED IN THE BUILDING IN WHICH THE ANTI-CASTRO UNDERGROUND WAS CENTERED
C. THERE IS SOME, THOOUGH NOT STRONG, EVIDENCE THAT HE WAS USED BY FBI TO INFILTRATE THESE GROUPS
3. OSWALD'S LINK TO ANTI-CASTRO CUBANS WOULD FLY IN THE FACE OF HIS POLITCAL BELIEFS
A. DIRECT CONFLICT W/MARXIST BELIEFS AND ADMIRATION FOR CASTRO
B. UNLESS THEY WERE USING HIM AND SOMEHOW SHOWED HIM THAT HIS PARTICIPATION IN A PLOT WOULD HELP HIM GET TO CUBA

• CIA (OFFICIAL OR SPLINTER GROUP)

1. CIA MOTIVE? LOTS OF THEM
2. OSWALD MOTIVE? NO POLITICAL MOTIVE  BUT CIA COULD HAVE USED HIM
3. CONNECTION TO CIA? DE MOHRENSHILDT
4. CONNECTION TO ANTI-CASTO CUBANS? CAMP STREET OFFICE OF BANNISTER

• MOB

1. DID THE MOB HAVE A MOTIVE TO KILL JFK? LOTS OF THEM
2. OSWALD'S MOTIVE?
A. FEAR OR GAIN (THE MOB IS GOOD AT MOTIVATING)
B. IGNORANCE (THE MOB IS GOOD AT KEEPING SECRETS)
3. CONNECTION?
A. MOBSTER UNCLE
B. IF HE WAS WORKING FOR FBI TO INFILTRATE ANTI-CASTRO GROUPS, HE MIGHT HAVE HAD A CONNECTION TO WHOMEVER WAS STEALING GUNS FROM MILITARY POSTS IN AREA THAT TURNED UP AT CAMP STREET FOR THE CUBANS WHO WANTED TO RETAKE ISLAND
C. JACK RUBY WAS MIDDLE MAN RUNNING GUNS FOR THE MAFIA

• HOW COULD ALL THESE GROUPS PROFIT BY OSWALD KILLING JKF?

1. CIA: WITH KENNEDY OUT OF THE WAY, OTHER PLANS TO FIGHT COMMUNISM COULD GO FORTH (THERE IS EVIDENCE LBJ BACKED THE CIA POSITION)
2. ANTI-CASTRO CUBANS: IF CASTRO WERE BLAMED FOR ASSASSINATION, U.S. MIGHT EVEN INVADE CUBA
3. THE MOB: WHEN THE CUBAN GOV'T IN EXILE MOVED BACK TO CUBA, THE MOB WAS READY TO MOVE BACK WITH THEM
 
• OSWALD AS PATSY: JFK WOULD BE DEAD AND NONE OF THE ABOVE WOULD BE BLAMED FOR IT (LONE NUT)