context: In 1980, a SWAT team raided Bolic Sound, finding a live hand grenade and seven grams of cocaine. Turner was convicted for cocaine possession and sentenced to thirty days in the L.A. county jail with three years probation. This was Turners first conviction. In April 1981, he was arrested for shooting a 49-year-old newspaper delivery man whom he accused of being physically and verbally abusive to his then wife, Ann Thomas and of kicking his dog. Turner said he only fired a shot to scare him off and that the man had injured himself when he climbed over the fence to get away. A jury in 1982 found him not guilty of assault. By 1985, Turners finances were in disarray and he owed the state of California $12,802 in back taxes. He later settled his account. He had tried to sell Bolic Sound in 1980 to raise funds to avoid foreclosure, but the studio burned down in a fire in January 1981 on the day Turner was due to show it to a potential buyer. Turner was arrested again on Friday, June 21, 1985, and charged with conspiracy to sell $16,000 worth of cocaine, possession and maintaining a residence for selling or using a controlled substance. The police took $1,000 of rock cocaine from his North Hollywood apartment. Also arrested and charged with him were Eddie Coleman Jr., 32, of Altadena, a record producer, and Richard Lee Griffin, 35, of Los Angeles, a music company writer.  Turner paid a $5,000 bond and was released. A further arrest came in 1986 for cocaine possession, concealed carry of a handgun and traffic violations. Turner was released on $2,671 bail. In January 1987, he was arrested for trying to sell 10 ounces of cocaine to an undercover police officer. He pleaded guilty to conspiring to sell the drug and not guilty to other counts. On February 16, 1990, he was sentenced to four years in a California prison for cocaine possession. He was incarcerated at the minimum security California Mens Colony, San Luis Obispo. Turner completed 18 months of his sentence before being released on parole in September 1991. Larry Kamien, associate warden of the California Mens Colony, said Turner was a model inmate. In prison he became a trustee working in the library and saved up $13,000 by selling cigarettes, candy bars and coffee to other inmates. He played music with other inmates and wrote 15 new songs that he was planning to record when he was released.
question: How many times was Turner arrested for cocaine possession?
answer: 5