Murder Suspect's Brother Arrested

MIDLAND - The brother of a Midland murder suspect has been arrested for Aggravated Assault.

27-year-old Isaac Sifuentes was arrested late Thursday on Aggravated Assault with a Deadly Weapon charges. The arrest is part of the murder investigation involving his sister 29-year-old Corina Sifuentes.

Corina Sifuentes was arrested Wednesday in Midland during a traffic stop. A warrant was issued for her arrest back on September 11th.

Police believe Corina Sifuentes shot and killed 45-year-old Sylvia Zapata at a home in the 1400 block of Fort Worth. The murder is believed to be the result of an ongoing dispute.