A stupid car thief stole the car allotted to the chief of police. The police started an investigation and arrested four suspects who were seen near the car at the time of the crime.

During the course of questioning, the suspects offered the following statements:

Arlo

1. In senior high school, I was in the same class as Caleb.
2. Bryce hasn't driven a car in his life.
3. The thief didn't know that it was the car of the police chief.

Bryce

1. Caleb is the guilty one.
2. Arlo is not guilty.
3. I haven't driven a car in my life.

Caleb

1. In senior high school, I was in the same class as Arlo.
2. Bryce is innocent.
3. Arlo is the guilty one.

Diego

1. Caleb is innocent.
2. I didn't do it.
3. Arlo is the guilty one.

It is known that:

• Precisely 4 of these 12 statements are true.
• At the time of committing the crime, the actual thief did not know that it was the Police Chief's car.

Determine the car thief from the above-mentioned clues.