It happened by Houston early this morning.  The Harris County Sheriff's Deputy was killed when an SUV crossed into his lane and hit him head-on.  

KHOU says the deputy was 32 years old and had a 10-year old son, but his identity hasn't been released yet.  He was an 11-year veteran of the force and a single father.

They're investigating to see whether the woman that crossed into the deputy's lane was under the influence of some type of drugs or alcohol.  She's in the hospital in serious condition.