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A second person of interest in connection with murder of an off-duty Houston police officer is now in police custody.

HPD

Officer Reuben De Leon joined HPD in 1999.

The most recent arrest took Houston police all the way up to Wichita Falls in North Texas.

A 27-year-old man appeared before Justice of the Peace Mike Little in Wichita Falls shortly before 6 p.m. Tuesday on a felony capital murder warrant out of Harris County.

Little told 11 News the warrant is in connection with the shooting death of Houston Police Officer Reuben De Leon.

Houston police went to Wichita Falls to bring the suspect back to Houston.

There is also a 19-year-old man who turned himself in to Beaumont authorities on Monday.

He is now being questioned in Houston. Police wouldn't say why he was arrested -- only that he is a "person of interest" in the De Leon case.

De Leon was fatally shot last Wednesday at a security office in a southwest Houston apartment complex.

Police said the suspect shot the off-duty officer multiple times after he answered a knock at the door. Witnesses reported seeing two people running from the scene.