TAMPA -- Months after news of the arrest of a serial killer in Seminole Heights, photos and other evidence from the case have been released by the Florida State Attorney's Office.

The string of murders began in October of 2017. Howell Emanuel Donaldson III, 24, is charged with four counts of first-degree murder in the killings of Benjamin Edward Mitchell, Monica Caridad Hoffa, Anthony Naiboa and Ronald Felton in Southeast Seminole Heights.

PHOTOS: Gun investigators say was used in Seminole Heights murders

Donaldson’s defense team filed objections to the release of evidence from the case on April 16 and May 16 of 2018, but the motion was denied after it was determined that it would not affect his right to a fair trial. He was found competent to stand trial last Thursday.

The State Attorney's Office released photos of the gun -- a Glock .40 -- which police say was used in the murders.

The following photos were also among the hundreds of images released:

  • Photo of Donaldson in his McDonald's uniform
  • Letter found near the scene of hte fourth letter. We don't know who wrote it, but it was religious-themed, asking the question, "What will you say when God asks you why?" The note also had some of the 10 commandments and scriptures.
  • Photos of some of Donaldson's tattoos. One showed a picture of Jesus crying blood.
  • A plane ticket from Tampa to New Jersey that was purchased just days before Donaldson's arrest.

Donaldson has been found competent to stand trial. If he's found guilty, Donaldson could face the death penalty.

Donaldson is set to appear in court again on Oct. 30 at 9 a.m.

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