from www.radaronline.com – The war of words is heating up between two of Tiger Woods’ mistresses, Joslyn James and Devon James.

In an exclusive interview with RadarOnline.com, Joslyn says she’s not worried about Devon’s threat to kill her in a recent email because according to Joslyn, “she’s not all together.”

In the email, sent from Devon to a mutual friend back in June, Devon allegedly threatened to kill Josyln after the two had an argument over money that Joslyn believed Devon stole from her.

“Something’s not computing with her,” Joslyn – who will be in NYC on Oct. 6th to promote the launch of her cosmetic line “Shameless” and is also promoting the DVD release of her film “11th Hole,” told RadarOnline.com exclusively. “She’s not right. She stole from me.”

Despite Devon’s unveiled “I will kill” threat, Joslyn says she’s not taking it seriously.

“She doesn’t seem to understand that there are laws against fraud and there are laws against threatening other people,” she said, adding, “I think she needs to know that there will be lawyers taking action against her.”

On Monday, RadarOnline.com posted an email from Devon, in which she spewed hatred and violent threats toward Joslyn – who is also a porn star – writing, “She’s as fake as her hair and her heart looks like her botched boobs.”

“Trust me I will I swear to u kill over this,” Devon wrote.

The feud erupted after the pair signed to shoot a porn flick about their sex-capades with the golf superstar, according to a friend, who spoke to RadarOnline.com.

While on set, Joslyn accused Devon of stealing cash from her purse.

“We were never friends,” Joslyn told RadarOnline.com. “I was cordial with her. I was always a lady around her, even after she stole from me.”

She adds, “Who knows what her motivation is but the fact that she keeps making up lie after lie, it’s obvious Devon’s not healthy.”