Ex-Civic Leader Found Guilty of Murdering 1 of His 2 Wives : Courts: David R. Miller faces 25 years to life in prison for the shooting death of his spouse in Florida after she confronted him about his double life.

A former San Fernando Valley civic leader who was married to two women simultaneously has been convicted in Florida of murdering his wife there during a confrontation over his double life.

David R. Miller, 42, former president of the Granada Hills Chamber of Commerce and founder of the San Fernando Valley Leadership Foundation, faces the possibility of 25 years to life in prison when he is sentenced in February, according to Seminole County Assistant State Atty. Steve Plotnik.

A Sanford, Fla., jury took only three hours Thursday to find Miller guilty of the Sept. 15, 1991, shooting death of his 33-year-old wife, Jayne, in the parking lot of a storage facility outside Orlando.

During the weeklong trial, witnesses testified that Miller’s wife of seven months had grown suspicious and hired a private investigator who tracked down his other wife.

When David Miller married Jayne in 1991 he had been married to Dorothy Miller for six years while he ran a Granada Hills printing business and became a high-profile local leader. David moved with Dorothy in 1989 to Orlando, but then asked her to go to live in Pennsylvania with family members.

Meanwhile, he continued secretly living in California, where he met and married Jayne. The couple then moved to Sanford.

At the time of her death, Jayne and David Miller were separated because of Miller’s verbal and mental abuse and death threats. On the day she was shot, she had called Miller and told him she was removing his personal property from a storage unit they shared.

Jayne Miller had hoped to leave before he arrived but ran into Miller in the parking lot of the storage facility, a witness testified. Other witnesses, including two cabdrivers whom Miller had called to help him remove his belongings, testified that the couple had a brief argument, and that Miller then hit his wife in the face.

His wife then got back into her car and rolled up the windows. Meanwhile, Miller pulled out a 9-millimeter pistol and fired six times through the driver’s side window, walked to the passenger’s side and fired once more.

Police said the victim was shot five times in the chest and head.

The cabdrivers held Miller and the gun until police arrived.

Dorothy Miller said in an interview after the killing that for years she had believed her husband’s story that he was a CIA agent, that the print shop was a front, and that his long absences were due to dangerous missions abroad.

Miller’s attorney had argued that Miller was temporarily insane when he killed his wife, having become distraught and suicidal after learning that his two wives knew about his double life.