Wreckage of sunken vessel found as 2 people remain missing after San Francisco boat tragedyPolice discovered Friday the wreckage of a boat that sank this week in the San Francisco Bay after recovering the body of a missing person the day before.The body was identified as Tondra Madruga, 58, also known as Tondra Miller, the San Francisco medical examiner said Friday. She was one of three people missing after the Volare, a 49-foot (15-meter) cabin cruiser, sank Wednesday afternoon with 20 people aboard after being hit by a wave and capsizing. The group was on the boat to scatter the…