Trayvon Martin's father testified Monday that he never denied it was his son's voice screaming for help on a 911 call, contradicting police officers' earlier testimony at George Zimmerman's ... more 
Trayvon Martin's father testified Monday that he never denied it was his son's voice screaming for help on a 911 call, contradicting police officers' earlier testimony at George Zimmerman's second-degree murder trial.Tracy Martin said that he merely told officers he couldn't tell if it was his son after his first time listening to the call. Martin added that he concluded it was his son after listening to the call as many as 20 times. Several friends of George Zimmerman's testified Monday at his second-degree murder trial that he's the one screaming for help on a 911 call ?and not 17-year-old Trayvon Martin. Convincing the jury of whose voice is on the tapes is important to both sides because it would help them decide who was the aggressor in the confrontation that left Martin dead. Relatives of Martin's and Zimmerman's have offered conflicting opinions on previous days about who is heard screaming. A taxi driver in Thailand has been charged with murder after allegedly stabbing an American with a machete during a fare dispute. Police said they arrested Cherdchai Utamacha in Bangkok, hours after closed-circuit television footage showed him attacking Troy Lee Pilkington, an American citizen who had lived in Thailand for three years. less 
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Mon, Jul 8, 2013 6:39 PM EDT