A Baton Rouge teenager accused in the April 2010 slaying of two men confessed to trying twice to gun down one of them less than five weeks before the man was shot to death, a sheriff’s detective testified Thursday.

East Baton Rouge Parish sheriff’s Capt. Todd Morris also said bullet casings found at the scene of the first attempt on Charles Matthews’ life matched casings found at the murder scene.

Ryan “Sneaks” Carroll, 17, and four others are being held without bail on two counts of first-degree murder in the killings of Matthews, 37, and Darryl “Bleek” Milton, 25, on Monte Sano Avenue on April 1, 2010.

The four others are Michael “Marlo Mike” Louding, 18; Kendrick Johnson, 19; Johnathan Rogers, 18; and Reginald Youngblood, 32, all of Baton Rouge.

Louding is accused in the slayings of six people over a 14-month period.

Carroll, who also faces two counts of attempted first-degree murder, appeared Thursday before state District Judge Trudy White on a motion to set bail in the murder case involving Matthews and Milton.

Carroll’s attorney, Ben Gibson, argued that Louding sent Gibson a letter in September stating that Carroll and Rogers had nothing to do with the murder of Matthews and Milton.

Louding, Carroll, Johnson and Rogers were indicted last June. Louding testified before the grand jury.

“I’m sure those grand jury members would love to see that letter now,” Gibson argued in asking White to set “reasonable bail” for Carroll.

The judge denied the request after Morris told prosecutor Dana Cummings that Carroll confessed to making two attempts on Matthews’ life in 2010 - first on Feb. 22 and then on March 6.

“That’s huge evidence,” Cummings told the judge.

In both attempts, someone other than Matthews was shot and wounded, Morris testified.

Morris said a 9 mm shell casing from the Feb. 22, 2010, incident matched casings found at the Monte Sano Avenue murder scene on April 1, 2010.

He also said Louding gave two videotaped statements implicating himself and Carroll in the killing of Matthews and Milton.

“He (Louding) had no reason to lie,” Cummings told White, referring to his videotaped statements.

Morris said Carroll told him that he and Louding are friends.

Cummings alleged that Louding was somehow pressured into sending the letter to Gibson.

“We can’t keep Michael Louding absolutely isolated in prison to keep people from trying to coerce him,” she said.

Louding also faces first-degree murder charges in the deaths of local rapper Chris “Nussie” Jackson on Feb. 9, 2009; Marcus Thomas on April 25, 2009; and Terry Boyd on Oct. 21, 2009.

Nationally acclaimed Baton Rouge rapper Torrence “Lil Boosie” Hatch, 28, was indicted separately last June on a first-degree murder charge in Boyd’s slaying.

Cummings has said previously in court that Hatch is accused of hiring Louding to kill Boyd.

Louding also is charged with second-degree murder in the killing of Michael Smith on Dec. 18, 2009. He was 16 at the time of Jackson’s and Thomas’ deaths and is not eligible for the death penalty.