On June 29, 2017 about 10:00 pm, the Marshalltown Police Department responded to UnityPoint Health emergency room on the report of a stabbing victim seeking treatment. Upon arrival, officers discovered the victim was unable to provide any suspect information as they were undergoing medical treatment and surgery. A witness, who took the victim to the emergency room, provided officers with a possible crime scene location, S 5th St. & W. Boone St, and limited suspect information.

According to the witness, the stabbing took place in an alley near the intersection, but officers were unable to locate a crime scene. Over the next several days, Detectives conducted several more witness interviews, executed a search warrant and interviewed the victim after they were released from intensive care.

The follow up interviews and investigation led to the identification of a suspect and an arrest warrant. Vincent James Martinez is wanted by police for attempted murder. Mr. Martinez is described as a 24 year old Hispanic male, 5’4” 125 pounds, brown eyes and black hair. Mr. Martinez has a tattoo on his right forearm “Martinez” and a tattoo on his left forearm “Juan Munoz”. The attached photo is approximately two years old, so Martinez’s appearance may have changed slightly.

If anyone knows the location of Mr. Martinez tips may be submitted by calling (641) 753-1234, via text by texting the word “marshall” followed by the tip to CRIMES (274637), or online at All tips are completely anonymous and could earn a reward of up to $1,000 if the tip results in an arrest.

For more information, please contact Captain Brian Batterson by calling 641.754.5729 or via email at
Vincent James Martinez


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