Four key witnesses in the case against George Zimmerman have changed their statements of what they saw the night 17-year-old Trayvon Martin was shot and killed in Sanford, Florida this February. Three of these witnesses’ changes may damage Zimmerman’s case.

The Orlando Sentinel gave a rundown of how the witnesses have changed their stories. All of the unnamed witnesses were initially interviewed on 26th February at the gated community, Retreat at Twin Lakes, in Sanford, Florida.

During the first interview, one of the witnesses said that she saw “two guys running. Couldn’t tell you who was in front, who was behind.”

Later, while speaking to the Florida Department of Law Enforcement, she stated, “I couldn’t tell you if it was a man, a woman, a kid, black or white. I couldn’t tell you because it was dark and because I didn’t have my contacts on or glasses…I just know I saw a person out there.”

Another witness told police she wasn’t sure who was on top in the fight she witnessed. After six days she said, “I know after seeing the TV of what’s happening, comparing their sizes, I think Zimmerman was definitely on top because of his size.”

A witness who lives just feet away from where Martin and Zimmerman fought, said that they saw a black man on top “throwing down blows on the guy, MMA-style.” They added that the one calling for help was Zimmerman.

Later, they admitted that because it was so dark they couldn’t tell who was yelling for help. He also said Martin may not have been throwing punches, but he may have been simply pinning Zimmerman down to the ground.

Twenty-two people are listed as witnesses in the case. Four of them whose stories changed will likely undergo more interviewing before Zimmerman’s trial begins. His next court date is scheduled for 8th August.

Here’s the Huffington Post’s report on these changes:

George Zimmerman pictured after the incident� AP