TOMBALL, Texas- The Tomball Police Department has 29-year-old Michael Brandon Jemison in police custody. The suspect was charged with murder for hitting and killing an "acquaintance" early Monday morning in Walmart.

According to police, the incident happened around 1 a.m. at the Walmart located on 27650 SH 249 in Tomball. The victim, Justin Jones, was inside the store with the suspect when an altercation broke out.

The suspect, identified as 29-year-old Michael Brandon Jemison, struck Jones with his motorcyle helmet and knocked him unconscious. Jemison immediately left the store.

The victim was taken to the hospital and died later that afternoon.

Investigators said that Jemison and Jones knew each other, and they'd been having a dispute for a long time.

<p>A mugshot of Michael Brandon Jemison. </p>