(CNN) -- A Florida man charged with murder in the fatal shooting of a teenager amid an argument over loud music at a gas station pleaded not guilty Monday.

Michael Dunn, 45, entered his plea during a hearing Monday morning at the Duval County, Florida, jail.

Dunn told investigators he fired at a car in which Jordan Davis, 17, and three of his friends were sitting because he felt threatened by them. No guns were found inside the teens' car, the Jacksonville Sheriff's Office said.

The case against Dunn, who has been jailed without bond since the November 26 shooting at the Jacksonville, Florida, gas station, has been compared to the "stand your ground" case in which George Zimmerman is charged with killing Trayvon Martin.

Similar to Martin, Davis was an African-American teen.

Dunn, indicted on a first-degree murder charge last Thursday, is no "vigilante" but did feel threatened and shot out of "self-defense," his lawyer said two days after his arrest.

"There are no comparisons to the Trayvon Martin situation," said Robin Lemonidis, Dunn's attorney. "He is devastated and horrified by the death of the teen."

Dunn told authorities that he had asked the teens to turn down the blaring music coming from their vehicle, which was parked next to his as he waited for his girlfriend to return to the car.

He heard threats from the teens, Dunn told police, and he felt threatened and thought he saw a gun in their car. He grabbed his gun and fired at least eight shots, authorities said.

1. What was the age of the man who was arrested?
2. How many kids were in the car that Michael fired at?
3. What date did the crime occur on?
4. What is the name of Mr. Dunn's attorney?
5. What was the cause of the fight between the two parties?
6. How many rounds did the shooter fire?
7. How did Dunn plea?
8. What crime was he arraigned for?
9. Did he receive a bond?
10. Who did they compare the incident to?
11. Who was Dunn waiting for at the gas station?
12. Was she involved in the incident?
13. What race was the victim
14. Did the cops find a weapon in his vehicle?
15. What kind of music was he playing?
16. What county was the jail in?
17. How does Dunn feel about the incident?
18. What city was the gas station in?
19. Whose gun was used in the shooting?
20. What race is Dunn?

Numbered answers:
1. 45
2. four
3. November 26
4. Robin Lemonidis
5. the blaring music coming from the teens' vehicle
6. at least eight
7. not guilty
8. murder
9. no
10. the killing of Trayvon Martin
11. his girlfriend
12. unknown
13. African-American
14. no
15. unknown
16. Duval County, Florida
17. devastated and horrified
18. Jacksonville, Florida
19. Dunn's
20. unknown