Police: Dad attacked, stabbed 17-year-old son (Donelson, Tennessee)

Again, why is there no mention of a mother around? Is UNNAMED DAD single or custodial? If so, why was he allowed any access to his kids, given his criminal record?

http://www.newschannel5.com/story/15030439/police-father-attacked-stabbed-17-year-old-son

Police: Father Attacked, Stabbed 17-Year-Old Son
Posted: Jul 05, 2011 9:32 PM CDT

NASHVILLE, Tenn. - A 41-year-old Donelson father is charged with attempted criminal homicide and aggravated child abuse after his teenage son was found by police with several stab wounds.

Police said the 17-year-old ran from his father to a Spence Lane motel at 3 a.m. Tuesday to call police.

Police said the father was angry over screw heads being stripped, and attacked the boy, stabbing him with a screwdriver, a knife, and beating him with an extension cord.

He was taken to Vanderbilt University Medical Center for treatment of injuries to his head, back, stomach and legs.

The name of the father is being withheld to protect the juvenile's identity.

Police said the father has federal convictions in Las Vegas for impersonating a deputy U.S. marshal and unlawful gun possession. He is being held in the Metro Jail in lieu of $200,000 bond.