As each day passes, the evidence is stacking up against George Zimmerman, a 28-year-old neighborhood watchman who shot an unarmed 17-year-old teenager.

Trayvon Martin was walking home with a bag of skittles and a can of iced tea when Zimmerman followed the youth, who he deemed “suspicious.”

“We’ve had some break-ins in my neighborhood and there’s a real suspicious looking guy,” Zimmerman told an emergency police dispatcher.” This guy looks like he’s up to no good or he’s on drugs or something.”

“These a**holes, they always get away,” he later says.

(Listen to George Zimmerman 911 Audio in Collegiate NetVision (CNV) by clicking here.)

The latest evidence is 911 audio with Zimmerman allegedly uttering a racial epithet. The racial slur he allegedly said was “f**king coons.”

“Coon” is a derogatory term for a black person. It is used to describe a childish or foolish acting black person.

The stereotype of coon was very prominent during popular era of minstrel shows where white actors dressed in black face to portray African Americans in a stereotyped-filled comedy routine.

(To learn more about BlackFace Minstrelsy, visit PBS here.)

The confirmation of Zimmerman uttering this racial slurcould prove his actions as a hate crime.

(Listen to audio of Zimmerman uttering what appears to be “f**king coons” in 911 Audio by in Collegiate NetVision by clicking here.)

Another 911 audio captured features screams of an individual begging for help. Martin’s parents say it was their son begging for his life.

Sybrina Fulton told Anderson Copper it was the voice of her son screaming for help in the 911 audio.

“I believe that’s Trayvon Martin, that’s my baby’s voice,” she said. “Every mother knows their child, and that’s his voice. “

“He was afraid for his life,” Travon Martin’s father Tracey Martin added. “He saw his death coming. He saw his death coming. The screams got more frantic.”

(Head over to Collegiate NetVision (CNV) to Listen to Chilling 911 Audio featuring someone Scream for Help by Clicking here.)

In a Press conference held Friday, March 16 with Trayvon Martin’s Parents and lawyer, witnesses describe altercation and the murder scene. Their accounts of the situation could prove pivotal in the investigation against Zimmerman.

Roommates Mary Cutcher and Selma Mora La Milla live together in a town home. The altercation took place in the back of their residence.

“We were in the kitchen. I heard the crying. It was a little boy,” she said. “As soon as the gun went off, the crying stopped. I firmly believe this was not self-defense.”

It was not self defense, she said, because she heard crying.

“If it was Zimmerman that was crying, Zimmerman would’ve continued crying after the shot went off,” she said.

The two attempted to go the police multiple times, WESH 2 reports.

“It’s not something you see everyday. It’s been so hard to realize right there was
a body,” La Milla said. “I never been seen a body in my life.”

La Milla saw Zimmerman standing over the dead teen and asked him three times what happened,” according to WESH 2.

“Third time I said what’s going on right there,” she said. “And he said call the police.”

Multiple police, she said, had my phone number and not one person called me back.

Sybrina Fulton, the teen’s mother, expressed anger and frustration with Sanford Police Department’s handling of the investigation

“This whole situation is a nightmare and I don’t understand why this man has not been arrested, at least charged and let a judge and jury decide if he’s guilty,” she said.

The attorneys for the Martin family said if the Sanford police department keeps calling the witnesses’ account inconsistent, they would assist in helping to file a complaint against the department, involving witness tampering, obstruction of justice and witness intimidation.

Watch witness testimony in Collegiate NetVision (CNV) Collegiate NetVision (CNV) by clicking here.