A Slidell man has pleaded guilty to attempted first-degree murder after stabbing a hotel clerk. St. Tammany District Attorney Warren Montgomery said Devin Trevon Wellman, 25, pleaded guilty Tuesday to attempted first-degree murder, criminal trespass and resisting an officer with force or violence.Wellman was then sentenced to 25 years without probation, parole, or suspension of his sentence, according to Montgomery. Montgomery said Wellman had no prior criminal record. In July, Montgomery said his office reported a plea and sentencing of Mariel Lewis, who was the co-defendant in this case.Back in May of 2021, Slidell police responded to the Days Inn in Slidell after a stabbing was reported. Police said they found the front desk hotel clerk lying on his back, covered in blood and stab wounds. Montgomery's office said witnesses identified Wellman and Lewis as suspects in the stabbing. According to police, the clerk entered their room asking them to leave due to nonpayment. Lewis began pepper-spraying and then stabbing the victim in the throat with a boxcutter, according to police. Police said Wellman then approached the victim, armed with a folding knife, and began to stab the victim. Both continued to cut and stab him before Wellman ran away, leaving Lewis, who continued to stab the victim, according to police. Hotel security footage captured the incident. The victim was rushed to the hospital and survived the attack, according to Montgomery.