GALVESTON, Texas -- The grandparents of two brothers, including a 10-year-old boy accused of killing his father, were granted temporary custody of the boys Wednesday.

The older boy is in a Harris county juvenile detention after allegedly shooting Dr. Rick Lohstroh on Aug. 27 as the two sat in Lohstroh's vehicle. Lohstroh had gone to his ex-wife's west Harris County home to pick up the boys for a week's visitation at his Friendswood home.

Lohstroh's mother and stepfather, Joanne and Dick Greene of Columbia, S.C., sought custody.

Galveston County Court-at-Law Judge Roy Quintanilla issued an emergency order giving them custody of the boys pending a hearing Sept. 16. The 10-year-old will not be released from custody.

A deputy constable tried unsuccessfully Wednesday to find the younger boy at the home of his mother, registered nurse Deborah Geisler, the Houston Chronicle reported in its online edition Wednesday night.

In a written motion seeking the temporary custody, the grandparents said the fact that the older boy was able to get a hold of a gun raises questions about the safety of the younger boy if he stays with his mother, the newspaper reported.

The boys alternated weeks at the homes of each of the parents.

Lohstroh's family, friends and coworkers will gather Thursday for a special service at the University of Texas Medical Branch in Galveston chapel.

Previous Stories:

September 2, 2004: Mother Disputes Report She Made Death Threat
September 1, 2004: Slain Doctor Told Police Wife Threatened To Kill Him
August 31, 2004: Girlfriend, Colleagues Defend Slain Doctor
August 30, 2004: Boy Suspected Of Fatally Shooting Father To Remain Detained
August 27, 2004: Constables: Boy, 10, Shoots Father To Death