MILAN (Reuters) - A Milan public prosecutor is to recommend that the former wife of murdered fashion king Maurizio Gucci be sent for trial with four others on charges of ordering his shooting by a hitman, judicial sources said. Carlo Nocerino has wound up an investigation into the killing of Gucci, who was shot dead in central Milan in March 1995, and will make his recommendation in the next few days, a source close to the investigation said. Gucci`s ex-wife, Patrizia Reggiani Martinelli, 51, her clairvoyant friend Pina Auriemma, 51 and three men were arrested in January in connection with the killing and have remained in jail. The three men are Ivano Savioni, 40, a hotel concierge, and Sicilians Orazio Cicala, 59, and Benedetto Ceraulo, 35. Maurizio Grigo, a magistrate in charge of weighing up all the evidence in the case, will take the final decision whether to order a trial on charges of premeditated murder. Investigators said at the time of Reggiani`s arrest that, according to testimony from an anonymous witness, she had paid 600 million lire ($350,000) for the contract killing, to be shared out between the four others. The Gucci empire, with its distinctive red and green motif and intertwined gilt GG logo, grew from a humble saddlery shop in Florence in 1906 into purveyors of luxury leather, shoes, ties and couture to the rich and famous. Maurizio, the last grandson of founder Guccio Gucci, was plunged into feuds in the style of the Medicis of mediaeval Florence after inheriting his father`s 50 percent share of the business. Police exposed the alleged murder plot by bringing in an undercover agent, posing as a killer from Colombia. Nocerino said in January that Reggiani had been consumed by hatred for her former husband because, among other things, he had neglected her when she was dangerously ill. Investigators have said the suspected killers tried to squeeze more money out of Reggiani after they gambled away their new-found wealth in a casino. Savioni and Auriemma discussed enlisting the police agent masquerading as a Colombian to intimidate Reggiani and are alleged to have considered ordering her murder because they feared she might confess to the police.