(Adds fresh testimony, details on gun charges) By Daniel Lovering FALL RIVER, Mass., March 23 (Reuters) - Former New England Patriots player Aaron Hernandez transferred $15,000 to a Florida man who prosecutors say sold him guns two months before he allegedly fatally shot an acquaintance, a former bank teller testified on Monday. Heidi Carrera said Hernandez in April 2013 deposited three checks totaling more than $1.8 million at the Bank of America branch where she worked near Los Angeles before transferring the $15,000 to the account of Oscar Hernandez, who is unrelated to the former tight end. Aaron Hernandez, 25, is being tried at Bristol County Superior Court in Fall River, Massachusetts, for the fatal shooting in June 2013 of Odin Lloyd, a semiprofessional football player who was dating the sister of Hernandez's fiancée. He then talked on his cell phone to get details for the transfer of $15,000 to Oscar Hernandez, she said.

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